Power Reducing Formulas for Sine and Cosine, Example 1

Thanks to all of you who support me on Patreon. You da real mvps! $1 per month helps!! 🙂 https://www.patreon.com/patrickjmt !! Power Reducing Formulas for Sine and Cosine, Example 1. In this video, I give a formula for (sinx)^2 and (cosx)^2 in terms of cosx.

Questions?

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