CUET Mathematics - Which of the following are first order linear differential equations? (A) dx/dy + P_1(y)x = Q_1(y) : P_1(y) and Q_1(y) are functions of y or constant functions (B) dy/dx + P_2(x)y = Q_2(x) : P_2(x) and Q_2(x) are functions of x or constant functions (C) (x + y)dy/dx = x - 2y (D) (1 + x^2)dy/dx - 2xy = x^2 + 3 Choose the correct answer from the options given below: | PYQs + Solutions | AfterBoards