Math Chapter Wise Integration, Applications Of Integration And Area Bounded By Curve English MCQ UP PCS (Pre) 1997 Q.The value of (((()))) 2 2 x y 0 0 e dxdy ∞ ∞ − + ∫∫ ∫∫ is Aπ/2 Bπ/4 Cπ/3 DNone of these Show answer Correct answer: π/4