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frac cot a 1 tan a frac tan a 1 cot a
Question:
\(\frac{\cot A}{1 - \tan A} + \frac{\tan A}{1 - \cot A} =\)
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Convert all trig identities to sine and cosine, then simplify. Rationalizing helps resolve complex fractions.
AP EAPCET - 2023
AP EAPCET
Updated On:
May 15, 2025
\( \tan A + \cot A \)
\( \sec A + \cosec A \)
\( \sin A \cos A + 1 \)
\( \mathbf{\sec A \cosec A + 1} \)
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The Correct Option is
D
Solution and Explanation
Let us simplify both terms: \[ \frac{\cot A}{1 - \tan A} + \frac{\tan A}{1 - \cot A} \] Use \( \cot A = \frac{1}{\tan A} \), substitute and simplify: After rationalizing and simplifying, you get: \[ \sec A \cosec A + 1 \]
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