Trigonometry
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Is the given equation an identity?
sinx(1−cotx)+cosx(1+tanx)−csc2x=2cosx−csc2x\sin x\left(1-\cot x\right)+\cos x\left(1+\tan x\right)-\csc^2x=2\cos x-\csc^2xsinx(1−cotx)+cosx(1+tanx)−csc2x=2cosx−csc2x
Yes
No