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 $u=f(r)$, जहाँ $r^2=x^2+y^2$ है, तो $\left(\frac{\partial^2 u}{\partial x^2}+\frac{\partial^2 u}{\partial y^2}\right)$ का मान क्या होगा?

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 $u(x, y)=y \log x+x \log y$ है,तो $u_x u_y-u_x \log x-u_y \log y+\log x \log y$ का मान क्या होगा?

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

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