32. Solve: dx t dy + (x+ytz + 1) dz =0 (A) x+y +z = Aex (B) xtytz = Ae (C) x+y +z = Aez (D) None of these 33. Solve: 2yz dx - 3zx dy-4x)y dz = 0 (A) = cy3z4 (B) = cy'z4 (C)r= cyz2 (D) None of these 34. Solve: dX+2y = 0 dt (A) y = Ae3l + Bef (B) x = Ae + Be (C)x = Ael + e (D) None of these 35. An equation of the form : dy x =y dx IS (A) Exact (B) Homogeneous (C) Linear (D) Non-linear