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JEE MATHEMATICS MCQ: INDEFINITE INTEGRATION

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Application +4 | -1
∫  1sin⁡  (x−a)  cos⁡  (x−b)  dx\int \,\,\frac{1}{{\sin \,\,\left( {x - a} \right)\,\,\cos \,\,\left( {x - b} \right)}}\,\,dx is equal to
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Correct option: B
1cos⁡  (a−b)  log⁡  ∣ sin⁡  (x−a)cos⁡  (x−b) ∣+C\frac{1}{{\cos \,\,\left( {a - b} \right)}}\,\,\log \,\,\left| {\,\frac{{\sin \,\,\left( {x - a} \right)}}{{\cos \,\,\left( {x - b} \right)}}\,} \right| + C
Option B is correct because the integral is solved by manipulating the integrand using trigonometric identities and then integrating.

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