Prove that 2 ^2θ- ^4θ-2 cosec^2θ +cosec^4θ= ^4θ-tan ^4θ. (ID)

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Prove that 2 ^2θ- ^4θ-2 cosec^2θ

+cosec^4θ= ^4θ-tan ^4θ.

(ID)

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Prove that 2 ^2θ- ^4θ-2 cosec^2θ +cosec^4θ= ^4θ-tan ^4θ. (ID)

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