cos2x-cos 2017 COS X-Cosa dx
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cos2x-cos 2017 COS X-Cosa dx

JEE/Engineering Exams
Maths
Solution
87
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( left.operatorname{sot} iint frac{cos 2 x-cos 2 alpha}{cos x-cos alpha}right) d x ) ( int frac{cos ^{2} x-1-left(cos ^{2} alpha-1right)}{cos x-cos alpha} d x ) ( intleft(frac{cos ^{2} x-cos ^{2} alpha}{cos x-cos ^{2} alpha}right) d x ) ( =int(cos x+cos alpha) d x ) ( sin x+x cos alpha+c )
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