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Cos^2A+cos^2A*cot^2A=cot^2A​
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Cos^2A+cos^2A*cot^2A=cot^2A​

User Ericosg
by
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1 Answer

5 votes
LHS: cos^2 A( 1+cot^2A)
=cos^2A(cosec^2A) ,1+cot^2A=cosec^2A
=cos^2A( 1/sin^2A)
=(cos^2A/ sin^2A)
=cot^2A
=RHS

Hope this can help.
User BaSsGaz
by
6.3k points
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