Question

If f'(x) = sin x + sin 4x cos x, then f" (2x2 +
is
for
Ins(
)
in
gin 2.2,​

Answer 1

Answer:

f

f′(x)=sinx+sin4x⋅cosx,

then

f′(2x2+π/2)

is?

Given answer:

4xcos(2x2)–4xsin(8x2)sin(2x2)

I tried and I'm getting the answer as cos(2x2)−sin(8x2)sin(2x2)

)

Answer 2

Answer:

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