SOLUTION: How do you prove that sin2theta = 2cot(theta)/csc^2(theta)
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Question 613146
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How do you prove that sin2theta = 2cot(theta)/csc^2(theta)
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lwsshak3(11628)
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How do you prove that sin2theta = 2cot(theta)/csc^2(theta)
Start with right side
2cotx/csc^2x
=(2cosx/sinx)/(1/sin^2x)
=2cosxsin^2x/sinx
=2sinxcosx
=sin2x
verified:
right side=left side