a) -2.5 u
b) -1.5 u
c) 0
d) -0.5 u
Value of \(x \frac{∂u}{∂x}+y \frac{∂u}{∂y}\) if \(u=\frac{Sin^{-1} (\frac{y}{x})(\sqrt{x}+\sqrt{y})}{x^3+y^3}\) is?
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Value of \(x \frac{∂u}{∂x}+y \frac{∂u}{∂y}\) if \(u=\frac{Sin^{-1} (\frac{y}{x})(\sqrt{x}+\sqrt{y})}{x^3+y^3}\) is?
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