જો $u=\log \left(x^3+y^3+z^3-3 x y z\right)$ હોય,તો $(x+y+z)(u_x+u_y+u_z)$ ની કિંમત શોધો.

  • A
    $0$
  • B
    $x-y+z$
  • C
    $2$
  • D
    $3$

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Similar Questions

જો $f(x, y) = \frac{\cos(x - 4y)}{\cos(x + 4y)}$ હોય,તો $\left. \frac{\partial f}{\partial x} \right|_{y = \frac{x}{2}}$ ની કિંમત શું થાય?

જો $z = \tan^{-1}\left(\frac{x}{y}\right)$ હોય,તો $z_x : z_y = $

જો $u \equiv u(x, y) = \sin(y + ax) - (y + ax)^2$ હોય,તો તે શું સૂચવે છે?

જો $u(x,y) = y \log x + x \log y$ હોય,તો ${u_x}{u_y} - {u_x} \log x - {u_y} \log y + \log x \log y = $

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View Solution

$z=\tan (y+a x)+\sqrt{y-a x} \Rightarrow z_{x x}-a^2 z_{y y}$ ની કિંમત શોધો.

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