Q.10 if y" is the i.f. of the differential equation 2rydr (3' - f)dy = 0 then the value of a is 1. 4 2. 4 3. -1 4.1 using this integrating factor, obtain the so

Q.10 If y" is the I.F. of the differential equation 2rydr (3' - f)dy = 0 then the value of a is 1. 4 2. 4 3. -1 4.1 Using this integrating factor, obtain the solution of given differential equation. Q.11 The differential equation (1+y+ ar'Jdr + (2+ *y*+ r'yldy = 0 is exact then a equals 1. 2. 3. 2 4.3 Using the value of a, obtain the solution of given differential equation.