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Q. Let $y=\frac{\left(e^{\sin x}-1\right)^4+(\cos x-1)^3 e^{\sin x}+\left(e^x-e^{-x}\right)^3+x^3+2 x^2+4}{e^x}$, then the value of $y^{\prime \prime}(0)$ equals

Continuity and Differentiability

Solution:

Correct answer is (d) 8