यदि $u = \sin^{-1}\left(\frac{x}{y}\right) + \tan^{-1}\left(\frac{y}{x}\right)$ है, तो $x \frac{\partial u}{\partial x} + y \frac{\partial u}{\partial y}$ का मान क्या है?

  • A
    $0$
  • B
    $1$
  • C
    $2$
  • D
    इनमें से कोई नहीं

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Similar Questions

यदि $u = \tan^{-1}(x + y)$ है,तो $x\frac{\partial u}{\partial x} + y\frac{\partial u}{\partial y} = $

यदि $u = \sin^{-1}\left(\frac{y}{x}\right)$ है,तो $\frac{\partial u}{\partial x}$ का मान क्या होगा?

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

यदि $z=\sec (y-ax)+\tan (y+ax)$ है, तो $\frac{\partial^2 z}{\partial x^2}-a^2 \frac{\partial^2 z}{\partial y^2}$ का मान ज्ञात कीजिए।

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

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