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Question
`(1 + tan^2A)/(1 + cot^2A)` = ?
Options
–1
sec2A
tan2A
cot2A
MCQ
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Solution
tan2A
Explanation:
`(1 + tan^2A)/(1 + cot^2A) = (sec^2A)/("cosec"^2A)`
= `(sin^2A)/(cos^2A)`
= tan2A
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