(cos 2x-3) dx cos4 x 4-cot x
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(cos 2x-3) dx cos4 x 4-cot x

JEE/Engineering Exams
Maths
Solution
115
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( =frac{1}{8} int frac{2 sin ^{2}(v)+1}{sin ^{prime}(v)} d v ) fom ( operatorname{ot}(v) ) ( =-frac{cot ^{3}(v)}{3}-3 cot (v) ) ( frac{1}{8} int frac{2 sin ^{2}(v)+1}{sin ^{(0)}(v)} d v ) ( =-frac{cot ^{3}(v)}{24}-frac{3 cot (v)}{8} )
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