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Simplify 20 basic trigonometric identities | Analytic trigonometry | Skills practice worksheet
I make short, to-the-point online math tutorials. I struggled with math growing up and have been able to use those experiences to help students improve in math through practical applications and tips.
YouTube on MSN
Build an interactive cardboard drum set with your smartphone | DIY digital drums tutorial
Discover how to build a fully functional drum set at home using cardboard, aluminum foil, and some basic electronics. In this step-by-step tutorial, you'll see how to craft the drums and cymbals, wire ...
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