Hint : Simplify LHS and RHS separately\left(\frac{1+\tan ^{2} A}{1+\co – InterviewSolution

1.	Hint : Simplify LHS and RHS separately\left(\frac{1+\tan ^{2} A}{1+\cot ^{2} A}\right)=\left(\frac{1 \- \tan A}{1-\cot A^}\right)^{2}=\tan ^{2} A
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