# Calculus

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If d/dx(f(3x^5))=9x^4
Find f'(x)

• Calculus -

nvm it's 3/5

• Calculus -

say d/dx (g) = 9 x^4
then g = (9/5)x^5 + constant
so
f(3x^5) = (9/5) (3x^5)^5 + constant
f(x) = (9/5) x^5 + c
f'(x) = 9x

• Calculus -

I mean 9 x^4

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