ECAT Maths XII : Chapter 4 PARTIAL DIFFERENTIATION (test 1) Leave a Comment / By Afshan JAMAL / July 3, 2026 Welcome to your ECAT Maths XII : Chapter 4 PARTIAL DIFFERENTIATION (test 1) The domain of f(x, y) = √(x + y) is: x < y x > y x ≤ y y ≥ −x None None Previous Start Quiz Next Time's up
