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posted by Carl on Monday, October 13, 2008 at 6:59pm.

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

nvm it's 3/5

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

I mean 9 x^4

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