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(Solved): Exercise2 : Solve the ODE i) (dy)/(dx)+(xy)/(1+x^(2))=x\sqrt(y). ii) (dy)/(dx)+(y)/(x)=(y^(2))/(x^(2 ...



Exercise2 : Solve the ODE i)

(dy)/(dx)+(xy)/(1+x^(2))=x\sqrt(y)

. ii)

(dy)/(dx)+(y)/(x)=(y^(2))/(x^(2))

. Exercise 3 : Find the values of parameters for which the ODE

(ax^(2)y+y^(3))dx+((1)/(3)x^(3)+bxy^(2))dy=0

is exact, and then solve it in the case of those values of

a

and

b

. Exercise 4 : Show that the DE

(x^(2)+y^(2)+x)dx+ydy=0

is not exact but becomes exact when multiplied by the integrating factor

\mu (x,y)=(1)/(x^(2)+y^(2))

. Then solve the equation.



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