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Question

Form the differential equation corresponding to y=ax2+bx,(a,b).

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Solution

y=ax2+bx(a,b)(a,b)twoconstantsthen,requireddifferentialequationsareinsecondorderyx=ax+bdifferentiatew.rtoxd(y/x)dx=adxdx+dbdxxdy/dxydxdxx2=a+0xdy/dxx2yx2=0dy/dxxy/x2=aagaindifferentiatew.r.toxxddx(dy/dx)dy/dx(dxdx)x2x2dy/dxydx2dxx4=0xd2y/dx2dy/dxx2x2dy/dx+yx4=0xd2y/dx2dy/dxx2dy/dxx2+yx2=0xd2y/dx2dy/dxdy/dx+yx2=0xd2y/dx22dy/dx+y/x2=0requireddifferentialequation.Ans.

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