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Prove :-

Cot²A +Cosec²A =cot²A cosec²A
From which book you derived this question? I'm not getting even in Objective books..
R.S Aggarwal part -2
I think d question is wrong ...may b printing mistake!!
rd sharma class 10th


Cos sq A by sinsquare A + 1÷ sinA ka whole squaren= cossquare A+1÷sinsquareA×sin square A = cos square A +1 ÷sinsquareA= cossqureA by sin square A +1 sinsquare = cot square A cosecsquareA hence proved
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