Plz help me in solving this sum
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Step-by-step explanation:
cot ^ 2 25* cosec^2 25 ( tan ^2 25 - sin ^2 25)
cot ^ 2 25* cosec^2 25( 1/ cot^2 25 - 1/ cosec^2 25)
cot^2 25 * cosec^2 25( cosec^2 25 -cot^2 25 /cot^2 25* cosec^2 25 )
= cosec^2 25 -cot ^2 25 ( by cancelling cot^2 25 and cosec ^2 25)
=1
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