11. What is the Taylor series for the function f(x) = e2x+1 about x = -1?

 

B.

C.

D.

E.

 

Solution: The answer is B

 

In general the Taylor series for a function f(x) about x = a is given by,

where, f(n)(a) is the nth derivative of f(x) evaluated at x = a.

The nth derivative of the given function f(x) = e2x+1 can be determined by the following iterations:

So that f(n)(-1) = 2n/e and the Taylor series is given by,