Asked by Stephanie

Find d^5/dx^5 g(x) for g(x)=sinx+5x^4

A. cos x
B. sin x + 120
C. -cos x +20x^3
D. -cos x + 120 x
E. sin x
Answered by oobleck
d^4/dx^4 sinx = sinx
The n+1st derivative of x^n is zero
so, A
Answered by Acorn
On Apex I found the answer to cos(x)

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