If u - sin-1 x - 2y -3z-x8 -y8 -z8 and the value of x- u- x-y- u- y-z- u- z is

F(u) = sin u =x +2y +3z/x^8 +y^8 +z^8 nbsp; nbsp; nbsp; nbsp; i.e. n = 7 x∂ u/∂ x+y∂ u/∂ y+z∂ u/∂ z =( 7)f(u)/f'(u) = 7sin u/cos u = 7 tan u ...

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Property 4

If u = sin-1 ...

Question

If $u = s i n^{- 1} (\frac{x + 2 y + 3 z}{x^{8} + y^{8} + z^{8}})$ and the value of $x \frac{\partial u}{\partial x} + y \frac{\partial u}{\partial y} + z \frac{\partial u}{\partial z}$ is

7 sin u

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-7 sin u

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-7 tan u

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-7 cos u

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Solution

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