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Choose the correct option. Justify your choice.  \(\frac{1 + tan^2A}{1 + cot^2A} = \)

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Choose the correct option. Justify your choice. \(\frac{1 + tan^2A}{1 + cot^2A} = \)

(A) sec2 A 

(B) -1 

(C) cot2 A 

(D) tan2 A

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Answer is (D)

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