prove that….............
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this is the way you should solve
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Step-by-step explanation:
tan^2A/(1+tan^2A)+cot^2A/(1+cot^2A)=1.
L.H.S.
=tan^2A/(1+tan^2A)+ cot^2A/(1+cot^2A).
=tan^2A/sec^2A + cot^2A/cosec^2A.
=(sin^2A/ cos^2A)÷(1/cos^2A) + (cos^2A/sin^2A)÷(1/sin^2A).
=sin^2A + cos^2A.
= 1 , proved.....
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