Math Chapter Wise Integration, Applications Of Integration And Area Bounded By Curve English MCQ UP PGT 2011 Haryana PGT 2019 Q.2 2 2 2 0 x dx a cos x b sin x π + ∫ is equal to: A2 ab π B2 2ab π C2 4ab π D2 9ab π Show answer Correct answer: 2 2ab π