It is "sin x to the power of 3 over 3". How do I derive this? I am supposed to use the CHAIN RULE.(adsbygoogle = window.adsbygoogle || []).push({});

Now the answer I am supposed to get is -sin^2x times cosx.

How did "that" happen. How do I chain the monster, 1/3sinx^3?

What troubles me is the sinx^3. For a regular sinx, the derivative is cosx. But with powers...? cosx^3?

Please 'elp.

Thx all

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# Homework Help: Stuck for 1hr on this UGLY derivative: 1/3sinx^3 (don't mock me)

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