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prove the following
2 cosec 2θ cos2θ = cotθ - tanθ
12 years ago

Answers

Steve
2 csc 2θ cos 2θ
= 2cot 2θ
= 2/tan 2θ
= 2(1-tan^2 θ)/(2tanθ)
= 1/tanθ - tan^2θ/tanθ
= cotθ - tanθ
12 years ago

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