Math Chapter Wise Length Of Curve, Surface Area And Volume Of Solids Of Revolution English MCQ PGT 2000 Q.The value of the integral (((()))) 1 1 2 2 0 0 x y dxdy + ∫ ∫ ∫ ∫ is equal to: A2/3 B0 C1/2 D1/3 Show answer Correct answer: 2/3