Math Chapter Wise Complex Integration, Cauchy's Theorem And Calculus Of Residue English MCQ UPPSC Polytechnic Lecturer 2021 (I) Q.The value of the integral ∫ 2π 0 dθ 3 + 2cosθ is- A2 5 π B5/π C2 5/π DNone of these Show answer Correct answer: 2 5 π