Isn't it easier to write sin 2theta = 2 sin theta and not bother memorizing the double-angle formula

Question

Mathematics

Dayana Faulkner

31 March, 04:41

Isn't it easier to write sin 2theta = 2 sin theta and not bother memorizing the double-angle formula

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Answers (1)

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Ray Dudley · Answer 1

First off, sin 2 theta = 2 sin theta cos theta. Also, the answer to your question is no. There are multiple double angle formulas, and it is important that you remember them so that you can answer questions correctly.