Answer to Question #76036 in Differential Equations for BIVEK SAH

Question #76036

Solve the differential equation
1.sin^-1(dy/dx)=(x+y)
2.(1+y^2)dx=(tan^-1y-x)dy
3.(D-1)^2(D^2+1)^2y=sin^2(x/2)+e^x+x
4.2x^2y(d^2y/dx^2)+4y^2=x^2(dy/dx)^2+2xy(dy/dx)

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