OMTEX CLASSES: Prove the identity [cosec (90 - θ ) – sin(90 - θ ) [cosec θ – sinθ ][tanθ + cotθ ] = 1

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Prove the identity [cosec (90 - θ ) – sin(90 - θ ) [cosec θ – sinθ ][tanθ + cotθ ] = 1

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