AP Calculus AB : Derivatives of functions

Study concepts, example questions & explanations for AP Calculus AB

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Example Questions

Example Question #91 : Derivatives Of Functions

What is the second derivative of the following function?

Possible Answers:

Correct answer:

Explanation:

Example Question #92 : Derivatives Of Functions

 

What is ?

Possible Answers:

Correct answer:

Explanation:

Example Question #93 : Derivatives Of Functions

What function is equivalent to the tenth derivative of the following function?

 

Possible Answers:

The tenth derivative is undefined.

Correct answer:

Explanation:

Even though the coefficients become massive as one progresses through successive derivatives of f(x), the sixth derivative yields a constant. The following seventh derivative will therefore equal zero, as will all following derivatives. We can confidently state — without necessarily deriving the equation ten times — that the tenth derivative will result in an equation equivalent to y=0.

Example Question #93 : Derivatives Of Functions

Find  

Possible Answers:

None of the other answers.

Correct answer:

Explanation:

According to the chain rule:

if  , then  .

 

 

So, .

 

To find the second derivative, we will use the chain rule again:

Therefore,   .

 

Finally, we simply plug in  into the second derivative. 

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