यदि $z = \sin^{-1}\left( \frac{x+y}{\sqrt{x} + \sqrt{y}} \right)$ है,तो $x\frac{\partial z}{\partial x} + y\frac{\partial z}{\partial y}$ का मान ज्ञात कीजिए।

  • A
    $\frac{1}{2}\sin z$
  • B
    $\frac{1}{2}\tan z$
  • C
    $0$
  • D
    इनमें से कोई नहीं

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Similar Questions

यदि $u = x y^2 \tan^{-1}\left(\frac{y}{x}\right)$ है,तो $x \frac{\partial u}{\partial x} + y \frac{\partial u}{\partial y}$ का मान ज्ञात कीजिए।

यदि $u \equiv u(x, y) = \sin(y + ax) - (y + ax)^2$ है,तो यह क्या दर्शाता है?

$z=\tan (y+a x)+\sqrt{y-a x} \Rightarrow z_{x x}-a^2 z_{y y}$ का मान ज्ञात कीजिए।

यदि $z = \tan^{-1}\left(\frac{x}{y}\right)$ है,तो $z_x : z_y = $

$\begin{aligned} & f(x, y)=2(x-y)^2-x^4-y^4 \\ & \left|\left(f_{x x} f_{y y}-f_{x y}^2\right)\right|_{(0,0)} \end{aligned}$

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