જો $z=\sec (y-ax)+\tan (y+ax)$ હોય, તો $\frac{\partial^2 z}{\partial x^2}-a^2 \frac{\partial^2 z}{\partial y^2}$ ની કિંમત શોધો.

  • A
    $0$
  • B
    $-z$
  • C
    $z$
  • D
    $2x$

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Similar Questions

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

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

જો $z = \frac{y}{x} \left[ \sin \frac{x}{y} + \cos \left( 1 + \frac{y}{x} \right) \right]$ હોય, તો $x \frac{\partial z}{\partial x}$ કોના બરાબર થાય?

જો $u=\sin ^{-1}\left(\frac{x^2+y^2}{x+y}\right)$ હોય, તો $x \frac{\partial u}{\partial x}+y \frac{\partial u}{\partial y}$ ની કિંમત શોધો:

જો $z=\log (\tan x+\tan y)$ હોય,તો $(\sin 2 x) \frac{\partial z}{\partial x}+(\sin 2 y) \frac{\partial z}{\partial y}$ ની કિંમત શોધો.

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