What is the radius of convergence of the maclaurin series (2x)/(1+x^2)?

Answers

Answer 1
To solve this problem you must apply the proccedure shown below:
 1. You have to find the radius of convergence of the following Maclaurin series:
 [tex](2x)/(1+ x^{2} ) [/tex]
 2. Let's take the denominator and find the roots:
 [tex]1+ x^{2} =0[/tex]
 [tex] x^{2} =-1 \\ x= \sqrt{-1} \\ x1=i \\ x2=-i[/tex]
 3. The roots are [tex]x1=i \\ x2=-i[/tex] and the distance from the origin is [tex]1[/tex].
 Therefore, the answer is: [tex]1[/tex]
Answer 2

The radius of convergence of the maclaurin series is 1 unit.

It is given that maclaurin series  [tex]\rm \frac{2x}{(1+x^2)}[/tex]

It is required to find the radius of the convergence of the maclaurin series.

What is maclaurin series?

It is defined as the expansion of a function that provide the approximation of the given function at any point of function.

We have:

[tex]\rm \frac{2x}{(1+x^2)}[/tex]

To find the radius of convergence of the maclaurin series, we must find the roots of denominator hence:

[tex]\rm 1+x^2= 0\\\\\rm x^2 = -1\\\\[/tex]

From the complex number: the roots are imaginary:

[tex]\rm x_1 = i\\x_2 = -i[/tex]

i is the iota

and the distance from the origin (0,0) is 1.

Thus, the radius of convergence of the maclaurin series is 1 unit.

Learn more about the maclaurin series:

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Related Questions

on Sunday Mary pay $6 each on two tickets to a movie theater movies for $9.58 each Mary paid with 3 $20 bills how much changed

Answers

$50.42







hjdjdjdjdbdhshssjdjdjdjdj

PLEASE HELP 50 point will give brainlyest
Evaluate 81000−−−−√3 .


1/125

6/500

8/500

2/10

Answers

when I did it I got 140296.11541307
THE ANSWER IS B: 6/500 :) JUST LIKE IT AND VOTE ON IT PLZ THANK U AND HAVE A OOF DAY XD have a good day lel

Help me solve this please!

Answers

The problem statement suggests you use a calculator. A graphing calculator can give the answers you seek.

a) The calculator shows 5 solutions:
  {5π/23, 5π/17, 25π/23, 25π/17, 45π/23}
These have approximate decimal values of
  {0.6830, 0.9240, 3.4148, 4.6200, 6.1466}

b) The calculator shows 2 solutions with approximate decimal values of
  {1.2925, 4.4341}

c) The calculator shows 2 solutions with approximate decimal values of
  {1.3694, 4.9137}

_____
This (desmos) calculator displays intercepts to 3 decimal places. Since you want 4 decimal places, some additional refinement of the answer was necessary. That was accomplished using Newton's method iteration. The details are not shown. A suitable graphing calculator (for example, a TI-84) will supply the intercept coordinates to full calculator accuracy.

A shell fits into a golden rectangle with a length of 8 in. What is the shell's width? write your answer is simplified radical form and rounded to the nearest tenth of an inch.
Select one:
a. About 4.9 inches
b. About 4.1 inches
c. About 5.3 inches

Answers

For this case we have the following relationship:
 l / w = (1 + root (5)) / 2
 Where,
 l: length of the rectangle
 w: width of the rectangle
 Clearing the width we have:
 w = (2 / (1 + root (5))) * (l)
 Substituting values:
 w = (2 / (1 + root (5))) * (8)
 Rewriting:
 w = 4.94427191 inches
 Rounding off we have:
 w = 4.9 inches
 Answer:
 
the shell's width is:
 
w = 4.9 inches
 
a. About 4.9 inches

The correct answer is option(a) about 4.9 inches.

To find the width of a golden rectangle with a given length,  we will use the golden ratio formula  that is

l / w = (1 + √5) / 2

Where, l = length of rectangle &  w = width of rectangle

By applying the above formula we get  the golden ratio, which is ≈ 1.618.

The formula for a golden rectangle is length(l) = 1.618 × width.

Given that length is 8 inches, we set up the equation:

8 = 1.618 × width

Solving for width:

width = 8 / 1.618 = 4.948...

The simplified radical form of 4.948... is ≈ 4.9 inches.

Thus, the correct answer is about 4.9 inches or option (a).

The angle of elevation to the top of a building in chicago is found to be 11◦ from the ground at a distance of 1000 feet from the base of the building. find the height of the building.

Answers

The height is 1943.8 feet. easiest way to do this is draw a little diagram. Draw the building and the unknown height can be "x". We know a 1000 feet away from the base of the building, the angle between the ground and top of the building is 11 degrees. If you draw this, you can see that you can use the tan function to find the missing "x". tan (angle) = opposite side/adjacent side. So tan(11) = x/1000. Isolate for x and you get 1943.8 feet

12x2 = 18x
i need someone to explain this

Answers

we have that
12x² = 18x------> 12x²-18x=0-----> divided by 12----> x²-(3/2)*x=0
this is the equation of a vertical parabola 
x²-(3/2)*x=0-----> x*(x-1.5)=0
the x-intercepts of the parabola are
x=0
x=1.5

using a graph tool
see the attached figure

suppose you drop a tennis ball from a height of 15 feet. After the ball hits the floor, it rebounds to 85% of its previous height. how high will the ball rebound after its third bounce? round to the nearest tenth

Answers

The answer would be 10.84

What is the point-slope equation of the line with a slope 4/3 that goes through the point (-4,6)?

Answers

[tex]\bf (\stackrel{x_1}{-4}~,~\stackrel{y_1}{6})~\hspace{10em}slope = m\implies \cfrac{4}{3}\\\\\\\begin{array}{|c|ll}\cline{1-1}\textit{point-slope form}\\\cline{1-1}\\y-y_1=m(x-x_1)\\\\\cline{1-1}\end{array}\implies y-6=\cfrac{4}{3}[x-(-4)]\implies y-6=\cfrac{4}{3}(x+4)[/tex]

Answer:

The point-slope form of the equation is y - 6 = 4/3(x + 4), which is answer B.

Step-by-step explanation:

In order to find the point-slope form of any equation, start with the base form of the equation.

y - y1 = m(x - x1)

Now input the slope given as m, and the point in for x1 and y1.

y - y1 = m(x - x1)

y - 6 = 4/3(x - -4)

y - 6 = 4/3(x + 4)

When he was 40 Keefer began investing $150 per month in various securities for his retirement savings. His investments averaged a 4.5% annual rate of return until he retired at age 70. What was the value of Keefer's retirement savings when he retired? Assume monthly compounding of interest.

Answers

At retirement, Keefer will have saved for 30 (that is, 70-40) years.
Monthly saving, P = $150, Annual rate of return, R = 4.5% = 0.045.

Therefore, future value (FV) at the time of retirement will be;

FV = P*[1+(R/12)^12*30]/(R/12)
Substituting all the parameters;
FV = 150*[1+(1+0.045/12)^360]/(0.045/12) = $113.907.92

The difference of a number and 8 is the same as 34 less the number. find the number.

Answers

Let the number be x.

8 - x = x -34

2x = 8 + 34

2x = 42

x = 21

Answer: The number is 21.

giving brainliest please help, and give steps if possible. Im trying to learn this.

Answers

To find (fg)(x), you must mult. together the two binomial functions f and g:

(fg)(x) = (6-5x)(6x^2+x = 36x^2 + 6x - 30x^3 - 5x^2

and then you must combine like terms:   (fg)(x) = -30x^3 + 31x^2 + 6x

Answer:

[tex]f(x)g(x) = - 30x^{3} + 31 {x}^{2} + 6x[/tex]

Step-by-step explanation:

[tex](fg)(x) \\ (fx) = 6 - 5x \\ g(x) = {6x}^{2} + x \\ substitute \: and \: calculate: \\ f(x)g(x) = - 30x^{3} + 31 {x}^{2} + 6x[/tex]

What is the linear function that best fits the data set?

Answers

Answer: Fourth option y=-3x+15
Please, see the attached file.
Thanks.

The local linear approximation of a function f will always be greater than or equal to the function's value if, for all x in an interval containing the point of tangency

Answers

the answer is the third one

f''(x)<0 is the answer

peter put $8,000 into a savings account that pays 6% interest, compounded continuously. what will he have after 5 years?

Answers

So, continuous compound formula is:
[tex] Pe^{rt} [/tex]
is Principal Amount
r is Rate
t is Time
P is 8000
r is 6%
t is 5
Therefore, you get $10,798.86.

Alan is giving a basic math test in his class. One of the questions in the test is about finding two factors of the number 221. Which are the two factors of the given number? The two factors of the number 221 are ___ and ____.

Answers

1,13,17 are three of them 

The two factors of the number 221 are 13 and 17. 
A factor refers to a whole number, which fits evenly into another whole number. Thus, factors are the numbers, which we multiply together to get another number. The two numbers that can be multiply together to get 221 are 13 and 17.

Kenny is making creamy rice pudding his recipe requires 4 cups of milk he has a quart of milk in his fridge dose he have enough milk explain

Answers

yes, because 4 cups = 1 quart 

A local movie theater charges $12 for an adult ticket and $10 for a child's ticket. a group of eight people spent a total of $86 on tickets to a movie. how many adults and how many children were in the group? write a system of linear equations based on the description. use x to represent the number of adults and y to represent the number of children.

Answers

3 adults and 5 kids. 

You can get this by setting up the following system of equations.

x + y = 8 (number of people)
10x + 12y = 86 (cost)

Express answer in exact form.

A segment of a circle has a 120 arc and a chord of 8in. Find the area of the segment.

Answers

Hello,
Please, see the attached file.
Thanks.

My brother owes me $10. I already have $10. My dads friend gave me and him $20 to split in half. He gave me the $20 and took my $10. Does he still owe me. Explain plz

Answers

Yes...     You have $10
               your brother is supposed to give you $10
               he gives you the money the friend told him to and you would have $20 PLUS the ten that he owes you. That would make you have $30. He took youre ten and gave you 20 but you were supposed to have 20 in the first place. He needs to give you the ten back he owes you. 

A car is traveling at a speed of 50 miles per hour. Each wheel of the car makes 770 revolutions per minute. To the nearest tenth of an inch, what is the diameter of each car wheel? (Note: 1 mile = 5,280 feet)

Answers

Answer: 21.8 inches

Given:

A car is traveling at a speed of 50 miles per hour. Each wheel of the car makes 770 revolutions per minute.

To get the diameter of each car wheel

Get first the length of revolution (circumference of the wheel) in inches.

Speed=50 miles/hr

=50miles/60 minutes

= 0.833333 miles/minute

=.833/5280=4400ft= 52,800 inches/minute

Since there are 770 revolutions per minute, per revolution  (circumference of the wheel) =

=52,800/770

=68.57 inches

Formula of diameter given the circumference is:

D=C/π 

D=68.57/3.14

D= 21.8 inches 

Answer:

21.8

Step-by-step explanation:

just took test

write an equation of an ellipse in standard form with the center at the origin and a height of 3 units and width of 1 unit

Answers

Final answer:

The equation of an ellipse with the specified attributes, using the center as the origin, is x2/0.25 + y2/2.25 = 1.

Explanation:

The question asks for the equation of an ellipse with the center at the origin and a height of 3 units and width of 1 unit. In an ellipse, the center is the midpoint of both the major and minor axes. The major axis can be the horizontal (width) or vertical (height) axis, and the minor axis is the other one.

Given that the height of the ellipse is 3 units, this determines the major axis and its length of 2a=3, which means a=1.5. The width of the ellipse is 1 unit, this determines the minor axis and its length of 2b=1, which means b=0.5.

Using these values, the equation of such an ellipse, centered at the origin, in standard form is x2/0.25 + y2/2.25 = 1

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Final answer:

The equation of an ellipse in standard form with the center at the origin, a height of 3 units and width of 1 unit is [tex]\(4x^2 + (y^2/2.25) = 1\).[/tex]

Explanation:

The equation of an ellipse in standard form with the center at the origin can be given by [tex]\(rac{{x^2}}{{a^2}} + rac{{y^2}}{{b^2}} = 1\)[/tex], where a is the semi-major axis and b is the semi-minor axis. Based on the information given in yourquestion, the height of the ellipse is 3 units which means the semi-major axis b is 1.5 units (since it's half the height). Similarly, the width of the ellipse is 1 unit which means the semi-minor axis a is 0.5 units (since its half the width). Substituting these values into the standard form of the ellipse we get: [tex]\(4x^2 + (y^2/2.25) = 1\)[/tex]

Learn more about Ellipse Equation here:

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how do I solve (x-5)(x-1)=0

Answers

With this equation, you'd distribute one set of parenthesis into the other. Doing so you'd get "X^2 - 1x - 5x + 5 = 0". Simplified, you'd have "X^2 - 6x + 5 = 0"

Next, you'd find the factors of 5, that when multiplied equal 5, and when added, equal -6. Being that 5 is a prime number (a number that is only divisible by 1 and itself) those numbers are 1 and 5. Both numbers have to be negative, in order to get -6.

-1*-5 = 5
-1 + -5 = -6

Finally you split up the X^2 to a single x with each of the factors and make it equal to zero (X - 1 = 0) and (X - 5 = 0). Then you solve each.

(X - 1 = 0) Add 1 to each side. X = 1
(X - 5 = 0) Add 5 to each side. X = 5

I hope this helps!

Help Geometry!!
AC is tangent to circle O at A. If , m<BY= 24 , what is m<YAC?

a) 48

b) 156

c) 78

d) 132

Answers

we know that
The inscribed angle measures half of the arc it comprises.
so
∡BAY=BY/2------> 24/2------> 12°

angles YAC and BAY are complementary angles
∡YAC+∡BAY=90°
∡YAC=90-∡BAY-------> ∡YAC=90-12-----> 78°

the answer is
78°

Solve the quadratic equation. 8x2 + 16x + 8 = 0 A) 1 B) -1 C) 1 and 8 D) 1 and -1

Answers

[tex]8x^2+16x+8=0\\\\8(x^2+2x+1)=0\ \ \ |:8\\\\x^2+2x+1=0\\\\x^2+x+x+1=0\\\\x(x+1)+1(x+1)=0\\\\(x+1)(x+1)=0\\\\(x+1)^2=0\iff x+1=0\\\\\boxed{x=-1}[/tex]
Answer: B. -1

How do you use properties of exponents and logarithms to rewrite functions in equivalent forms and solve equations?

Answers

Some of the logarithmic properties most used to solve equations are the following.
 1) log (a) ^ b = b * log (a)
 2) log (a * b) = log (a) + log (b)
 3) log (a / b) = log (a) - log (b)
 These logarithmic properties can be used to solve equations.
 For example:
 2 ^ x = 56
 If we apply to this equation the logarithm function on both sides that we have left
 log (2) ^ x = log (56)
 This function is equivalent to the first.
 If we now apply the property 1) of the previous logarithms, we can reveal x of the equation.
 x * log (2) = log (56)
 x = log (56) / log (2)
 x = 5,807
 Thus, thanks to the properties of the logarithms, this exponential function could be solved

Final answer:

To use properties of exponents and logarithms effectively, one must apply specific rules such as the logarithm of a product being the sum of the logarithms and the logarithm of a number raised to an exponent being the product of the exponent and the logarithm. Log transformations help linearize and solve equations involving exponents.

Explanation:

To rewrite functions in equivalent forms and solve equations using the properties of exponents and logarithms, one must understand several key rules and relationships. For example, the common logarithm (log) indicates the power to which 10 must be raised to equal a given number.

Two essential properties we use are:

The logarithm of a product of two numbers is the sum of the logarithms of the two numbers (log xy = log x + log y).The logarithm of a number raised to an exponent is the product of the exponent and the logarithm of the number (log x^n = n log x).

Exponential and logarithmic functions are inverses. This relationship allows us to simplify complex expressions and solve exponential equations by taking the logarithm of both sides. For instance, the natural logarithm (ln or loge) and the base e exponential are inverse functions, so ln (e^x) = x and e^(ln x) = x.

A log transformation can linearize functions that involve an exponent by taking the log of both sides of the equation. This technique is valuable in solving equations where the variable is an exponent.

Simplify the square root of 864.
I cant remember this, please tell me how you got the answer.

Answers


[tex] \sqrt{864} [/tex]
[tex] \sqrt{4 \times 216} [/tex]
[tex] \sqrt{4 \times 4 \times 54} [/tex]
[tex] \sqrt{4 \times 4 \times 2 \times 27} [/tex]
[tex] \sqrt{4 \times 4 \times 2 \times 9 \times 3} [/tex]
now take out the pairs.
[tex]4 \sqrt{2 \times 9 \times 3} [/tex]
take out any of the square roots like 9
[tex]4 \times 3 \sqrt{2 \times 3} [/tex]
Now put it all back together.
[tex]12 \sqrt{6} [/tex]
I believe that is the answer.

HELP!!!!!!NEED TO PASS!!!!WILL GIVE THE BRAIN!!!!!!!!!!!

Answers

Shifting left means adding a number to x.

So, x³ shifted 5 units to left will be (x + 5)³

Shifting 4 units upwards means adding 4 to the function value,

So, previous function shifted 4 units up will be (x + 5)³ + 4

Thus, g(x) = (x + 5)³ + 4

So, option b gives the correct answer



So, option b gives the correct answer

"the placement test for a college has scores that are normally distributed with a mean of 600 and a standard deviation of 60.if the college accepts only the top 1​% of​ examinees, what is the cutoff score on the test for​ admission?"

Answers

The cutoff will be evaluated as follows:
let the cutoff be x

but
P(x>0.01)=1-P(x<0.01)=1-0.01=0.99
the z value corresponding to 0.99% is z=2.33
thus
2.33=(x-600)/60
solving for x we get:
139.8=x-600
x=739.8

someone help me please

Answers

For this case we have the following functions:
 f (x) = 3x + 1
 g (x) = x ^ 2 - 6
 Subtracting both functions we have:
 (f-g) (x) = f (x) - g (x)
 (f-g) (x) = (3x + 1) - (x ^ 2 - 6)
 (f-g) (x) = 3x + 1 - x ^ 2 + 6
 (f-g) (x) = - x ^ 2 + 3x + 7
 Answer:
 
(f-g) (x) = - x ^ 2 + 3x + 7
 option B

A catapult is malfunctioning and not throwing objects in the intended manner. The builders have modeled the path of the objects thrown by using the following parametric equations. rewrite the parametric equations by eliminating the parameter.
x(t)=2t-1
y(t)= square root of t; t> or equal to 0

Answers

Answer:

The equation is [tex]y ^ 2 = \frac{x + 1}{2}[/tex]

Step-by-step explanation:

The parameter that we have is t. We want to eliminate this parameter in both equations, therefore in the first equation we solve for t and in the second equation we solve for the variable t.

We have:

[tex]x = 2t-1\\\\x + 1 = 2t\\\\t = \frac{x + 1}{2}[/tex]

Now we solve the other equation for t.

[tex]y= \sqrt{t}[/tex]

[tex]y ^ 2 = t[/tex]     because   [tex]t> 0[/tex]

As [tex]t = y ^ 2[/tex] and also [tex]t = \frac{x + 1}{2}[/tex]

Then:

[tex]y ^ 2 = \frac{x + 1}{2}[/tex]

The correct answer is:

D. [tex]x=2y^{2} -1, y\geq 0[/tex]

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The two triangular prisms shown are similar. The dimensions of the larger prism were multiplied by a scale factor of to create the smaller prism.When the large prism was reduced, the surface area changed by a factor ofA.64/125B.16/25C.4/5D.10/8 If the numerator of a fraction is increased by 3, the fraction becomes 3/4. If the denominator is decreased by 7, the fraction becomes 1. Determine the original fraction. Which of the following equations represents "If the numerator of a fraction is increased by 3, the fraction becomes 3/4"? Why is a speaker's most important theme usually placed at the conclusion of the speech? Which sentence uses the word vengeance correctly? ANSWER CHOICES IN THE PHOTO!!! Please hurry The Bush administration cracked down on drug trafficking from Question 14 options:Africa.China.Latin America.the Middle East. Ezra is training for a track race. He starts by sprinting 100 yards. He gradually increases his distance, adding 5 yards a day for 21 days. The equation for a projectile's height versus time is h(t)=-16t^2+Vt+h. A tennis ball machine serves a ball vertically into the air from a height of 2 feet, with an initial speed of 130 feet per second. Which equation correctly models the ball's height as a function of time? Is my answer correct or incorrect? Explain please. Thank you 99 POINTS!!! Why do people on Earth see only one side of the Moon when the Moon is visible in the sky?A.The Moon does not rotate.B.The Moon does not revolve.C.The Moon and Earth rotate at the same rate.D.The Moon rotates and revolves at the same rate. Simplify the expression. (2x^2y)^3 what did the presidential election of 1984 and 1988 show about the mood of the country How did france and great britain respond when germany disobey the treaty of versailles? What is the difference between AM radio waves and FM radio waves?A-AM waves travel short distances along the Earths surface; FM waves travel farther.B-An AM wave varies in amplitude; an FM wave varies in frequency.C-FM waves are better reflected by particles in the Earths atmosphere.D-An FM wave varies in amplitude; an AM wave varies in frequency. In class, professor miller discussed the reason that the money spent on trade promotions was much higher than the money spent on consumer promotions. he suggested that companies focus their efforts on trade promotions because... consumers tend to know about trade promotions anyway so it doesn't really matter what companies do. consumer promotions are not cost effective. consumers are very particular about the types of promotions that they like. consumer promotions negatively impact the value of the brand. Henry Bessemer is known for what invention List two possible explanations for why drinking milk could have provided strong favorable selection for lactase persistence. A company has the choice of either selling 600 defective units as scrap or rebuilding them. the company could sell the defective units as they are for $2.00 per unit. alternatively, it could rebuild them with incremental costs of $0.60 per unit for materials, $1.00 per unit for labor, and $0.80 per unit for overhead, and then sell the rebuilt units for $5.00 each. what is the amount of incremental revenue from rebuilding? A blockage in structure a would directly reduce blood flow to the Write an equation of the direct variation that includes the point (6, 2). y = 3x If 3.0 10^15 electrons flow through a section of a wire of diameter 2.0 mm in 4.0 s, what is the current in the wire? (e = 1.60 10^-19 c)