જો $u = x^2 \tan^{-1}(\frac{y}{x}) - y^2 \tan^{-1}(\frac{x}{y})$ હોય,તો $\frac{\partial^2 u}{\partial x \partial y} = $

  • A
    $\frac{x^2 + y^2}{x^2 - y^2}$
  • B
    $\frac{x^2 - y^2}{x^2 + y^2}$
  • C
    $-\frac{x^2 + y^2}{x^2 - y^2}$
  • D
    $-\frac{x^2 y^2}{x^2 + y^2}$

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Similar Questions

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.

જો $u^2 = (x - a)^2 + (y - b)^2 + (z - c)^2$ હોય,તો $\sum \frac{\partial^2 u}{\partial x^2} = $

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.

જો $z = y + f(v)$,જ્યાં $v = \frac{x}{y}$ હોય,તો $v \frac{\partial z}{\partial x} + \frac{\partial z}{\partial y}$ ની કિંમત શું થાય?

Difficult
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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