Mathematics, 12.07.2019 16:30 veronicacalyn
1) explain the difference between an equation and an identity. 2) how can you use the graphing capability to verify that two equations are identities? 3) what determines whether to use + or – in the half angle formula for sine and cosine? 4) where does the pythagorean identity come from? 5) can the double-angle formula be used to find sin 22.5 ?
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