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If V=cos^- x+y / √x +√y then verify that cosV =x+y / √x +√y is a homogeneous function of x,y of degree 1/2 prove that x dV / ds +y dV / dy + 1/2 cotV =0

If V=cos^- x+y / √x +√y then verify that cosV =x+y / √x +√y is a homogeneous function of x,y of degree 1/2 prove that x dV / ds +y dV / dy + 1/2 cotV =0

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Grade:12th pass

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