यदि $u = (x^2 + y^2 + z^2)^{3/2}$ है,तो $\left( \frac{\partial u}{\partial x} \right)^2 + \left( \frac{\partial u}{\partial y} \right)^2 + \left( \frac{\partial u}{\partial z} \right)^2 = $

  • A
    $9u$
  • B
    $9u^{4/3}$
  • C
    $9u^2$
  • D
    $u^{4/3}$

Explore More

Similar Questions

यदि $u = u(x, y) = \sin(y + ax) - (y + ax)^2$ है,तो निम्नलिखित में से कौन सा सत्य है?

यदि $f(x, y) = \frac{\cos(x - 4y)}{\cos(x + 4y)}$ है,तो $\left. \frac{\partial f}{\partial x} \right|_{y = \frac{x}{2}}$ का मान क्या होगा?

यदि $u = x^2 + y^2$ और $x = s + 3t, y = 2s - t$ है,तो $\frac{d^2u}{ds^2} = $

Difficult
View Solution

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 = $

Difficult
View Solution

यदि $u=\log \left(x^3+y^3+z^3-3 x y z\right)$ है,तो $(x+y+z)(u_x+u_y+u_z)$ का मान ज्ञात कीजिए।

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo