Q. Let $y = \frac{( e ^{s i n x} - 1 ) ^{4} + ( c o s x - 1 ) ^{3} e ^{s i n x} + ( e ^{x} - e ^{- x} ) ^{3} + x ^{3} + 2 x ^{2} + 4}{e ^{x}}$ , then the value of $y^{''} (0)$ equals

801 144 Continuity and Differentiability Report Error

A

-4

B

4

C

-8

D

8

Solution:

Correct answer is (d) 8