(adsbygoogle = window.adsbygoogle || []).push({}); trigonometric integrals; choosing which one to "break up?"

When you have two different trigonometric functions multiplied together within the integral, for example integral of (cos^4*sin^6) how do you tell which one to "break them up" to substitute an identity in?

Thank you!

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# Trigonometric integrals; choosing which one to break up?

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