cosec [2 ^ -1 (5)+ ^ -1 ( 4 5 ) ] is equal to
Mathematics · JEE Main · NTA Exams — Trigonometry
\(\operatorname{cosec}\left[2 \cot ^{-1}(5)+\cos ^{-1}\left(\frac{4}{5}\right)\right]\) is equal to
Answer
(B)
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