will award best answer circular functions help?
if: pi < θ < 3pi/2 and sinθ = -2/3, find sin20
- rotchmLv 76 months agoFavorite Answer
sin(2θ) = 2 sin(θ)cos(θ), right?
You are given sin(θ) and you are told in what quadrant θ is.
Thus, what is the value of cos(θ)? Then just compute 2 sin(θ)cos(θ).
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