please answer the 2nd question
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1+ tan^2=sec^2
1+ cot^2=cosec ^2
=sec^2/cosec^2=tan^2
option b is correct
1+ cot^2=cosec ^2
=sec^2/cosec^2=tan^2
option b is correct
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1+tan^2A /1+cot^2A
=sec^2A/cosec^2A
=sin^2A/cos^2A
=tan^2A
=sec^2A/cosec^2A
=sin^2A/cos^2A
=tan^2A
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