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Use a Pythagorean identity to rewrite the equation below using only the function sin θ. Then find the value of r if θ=30°,60°, and 90°. r=4*sinθ*cos^2θ Please explain/show steps, thanks!
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Aug 10, 2019
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Use a Pythagorean identity to rewrite the equation below using only the function sin θ. Then find the value of r if θ=30°,60°, and 90°.
r=4*sinθ*cos^2θ
Please explain/show steps, thanks!
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Kimara
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Sanaz
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