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

  • A
    $\sin u$
  • B
    $\tan u$
  • C
    $\cos u$
  • D
    $\cot u$

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

यदि $f(x, y) = \frac{\cos(x - 4y)}{\cos(x + 4y)}$ है, तो $\left. \frac{\partial f}{\partial x} \right|_{y = \frac{x}{4}}$ का मान ज्ञात कीजिए:

यदि $z=\log (\tan x+\tan y)$ है,तो $(\sin 2 x) \frac{\partial z}{\partial x}+(\sin 2 y) \frac{\partial z}{\partial y}$ का मान ज्ञात कीजिए।

यदि $u = \frac{x + y}{x - y}$ है,तो $\frac{\partial u}{\partial x} + \frac{\partial u}{\partial y} = $

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