Question

$write \: sin2 \alpha \: in \: terms \: of \: tan \alpha$
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Answer 1

Answer:

We will develop formulas for the sine, cosine and tangent of a half angle. ... θ=2α​. then 2θ = α and our formula becomes: cos ⁡ α = 1 − 2 sin ⁡ 2 ... cos 2θ = 2cos2 θ − 1 (see cosine of a double angle) ... We can also write the tangent of a half angle as follows: ... Express in the form R sin (θ + α) · 7. Inverse ...

Step-by-step explanation:

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