Calculus 2 : Series in Calculus

Study concepts, example questions & explanations for Calculus 2

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Example Questions

Example Question #11 : Taylor And Maclaurin Series

Write out the first four terms of the Taylor series about  for the following function:

Possible Answers:

Correct answer:

Explanation:

The Taylor series about x=a for a function is

For the first four terms (n=0, 1, 2, 3), we must find the zeroth, first, second, and third derivative of the function. The zeroth derivative is the function itself.

The derivatives were found using the following rule:

Now, use the above formula to write out the first four terms:

which simplified becomes

.

Example Question #262 : Series In Calculus

Write out the first three terms of the Taylor series about  for the following function:

Possible Answers:

Correct answer:

Explanation:

The Taylor series about x=a for a given function is

So, for the first three terms (n=0, 1, 2), we must find the zeroth, first, and second derivatives of the function, where the zeroth derivative is just the function itself:

The derivatives were found using the following rules:

 , 

Now, using the above formula, write out the first three terms:

which simplified becomes

.

 

Example Question #261 : Series In Calculus

Write out the first four terms for the Taylor series about  for the following function:

Possible Answers:

Correct answer:

Explanation:

The Taylor series about x=a for a funtion is given by

For the first four terms (n=0, 1, 2, 3), we must find the zeroth, first, second, and third derivative of the function, where the zeroth derivative is just the function itself:

The derivatives were found using the following rules:

Now, use the above formula to write out the first four terms (after some distribution we get the final answer):

which simplified becomes

 

Example Question #264 : Series In Calculus

Write out the first two terms of the Taylor series about   for the following function:

Possible Answers:

Correct answer:

Explanation:

The Taylor series about x=a for a function is given by

First, we must find the zeroth and first derivative of the function (n=0, 1), where the zeroth derivative is just the function itself:

and was found using the following rules:

Now, use the above formula to write out the first two terms:

which simplified becomes

 

 

Example Question #265 : Series In Calculus

Write out the first three terms of the Taylor series about  for the following function:

Possible Answers:

Correct answer:

Explanation:

The Taylor series about x=a for a function is given by

For the first three terms (n=0, 1, 2) we must find the zeroth, first, and second derivative of the function, where the zeroth derivative is just the function itself:

The derivatives were found using the following rules:

Now, write out the first three terms using the above formula:

which simplified becomes

 

 

Example Question #13 : Taylor And Maclaurin Series

What is the power series of the function below?

Possible Answers:

Correct answer:

Explanation:

It is known that the power series for  at  is

So we just need to plug this in with  instead of  to get

Example Question #261 : Series In Calculus

Write out the first three terms of the Taylor series about  for the following function:

Possible Answers:

Correct answer:

Explanation:

The Taylor series about x=a for a given function is:

For the first three terms (n=0, 1, 2), we must find the zeroth, first, and second derivatives, the zeroth derivative being the function itself:

The derivatives were found using the following rule:

Now, using the above formula, write out the first three terms:

which simplified becomes

Example Question #262 : Series In Calculus

Find the taylor series expansion of  at .

Possible Answers:

Correct answer:

Explanation:

To find the Taylor series expansion of  at , we first need to find an expression for the nth term of the Taylor polynomial.

The nth term of the Taylor polynomial is defined as

In this problem,  and .

We need to continue finding terms in the taylor polynomial until we can determine the pattern for the nth term.

We can see that all the derivatives will be 1 or 

The Taylor polynomial simplifies to 

Now that we know the nth term of the Taylor polynomial, we can find the Taylor series.

The Taylor series is defined as

 where the expression within the summation is the nth term of the Taylor polynomial.

For this problem, the taylor series is

Example Question #263 : Series In Calculus

Find the taylor series expansion of  at .

Possible Answers:

Correct answer:

Explanation:

To find the Taylor series expansion of  at , we first need to find an expression for the nth term of the Taylor polynomial.

The nth term of the Taylor polynomial is defined as

In this problem,  and .

We need to find terms in the taylor polynomial until we can determine the pattern for the nth term.

Substituting these values into the taylor polynomial we get

 All the even derivatives disappear and all the odd derivatives oscillate in sign, starting with a positive term.  Mathematically, we represent odd numbers as  or .  We represent oscillating signs as 

The Taylor polynomial simplifies to 

Now that we know the nth term of the Taylor polynomial, we can find the Taylor series.

The Taylor series is defined as

 where the expression within the summation is the nth term of the Taylor polynomial.

For this problem, the taylor series is

Example Question #264 : Series In Calculus

Find the Taylor series expansion of  at 

Possible Answers:

Correct answer:

Explanation:

To find the Taylor series expansion of  at , we first need to find an expression for the nth term of the Taylor polynomial.

The nth term of the Taylor polynomial is defined as

In this problem,  and .

We need to find terms in the taylor polynomial until we can determine the pattern for the nth term.

 

Substituting these values into the taylor polynomial we get

The Taylor polynomial simplifies to 

Now that we know the nth term of the Taylor polynomial, we can find the Taylor series.

The Taylor series is defined as

 where the expression within the summation is the nth term of the Taylor polynomial.

For this problem, the taylor series is

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