Math, asked by smt16905, 9 months ago

Please give step by step solution....

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Answered by venkatavineela3

1

Answer:

Step-by-step explanation:

LHS:

cosec^4t-2cosec^2t+2sec^2t-sec^4t

cosec^4t-2cosec^2t+1-(sec^4t-2sec^2t+1)

=(cosec^2t-1)^2+(sec^2t-1)^2

=cot^2t)^2+tan^2t)^2

cot^4t+tn^4t

=RHS

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