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NDA 2026 · PYQ · Integration / Partial Fractions · hard

Let ∫ sinθ dθ / [(2 + cosθ)(3 + 4cosθ)] = A ln|2 + cosθ| + B ln|3 + 4cosθ|. What is the value of B?

  1. A.-2/5
  2. B.-1/5✓ Correct
  3. C.1/5
  4. D.2/5

Explanation

From the partial fraction work in Q91, B = -1/5.
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