જો $r = [2\phi + \cos^2(2\phi + \pi/4)]^{1/2}$ હોય,તો $\phi = \pi/4$ આગળ વિકલિત $dr/d\phi$ નું મૂલ્ય શું છે?

  • A
    $2\left( \frac{1}{\pi + 1} \right)^{1/2}$
  • B
    $2\left( \frac{2}{\pi + 1} \right)^{-1/2}$
  • C
    $2\left( \frac{1}{\pi + 1} \right)^{-1/2}$
  • D
    $2\left( \frac{2}{\pi + 1} \right)^{1/2}$

Explore More

Similar Questions

વિધાન: $x < 0$ માટે, $\frac{d^2}{d x^2}(\log |x|) = \frac{1}{|x|^2}$.
કારણ: $x < 0$ માટે, $|x| = -x$.

જો $y = \frac{e^x \log x}{x^2}$ હોય,તો $\frac{dy}{dx} =$

જો $f(x) = \sin \left(\cosh \left(\frac{x^2+1}{x^2+2}\right)\right)$ હોય, તો $f^{\prime}(1) = $

$\frac{d}{dx} \left( \lim_{y \to 2} \frac{1}{y-2} \left( \frac{1}{x} - \frac{1}{x+y-2} \right) \right) = $

જો $f(x) = \frac{\sin^{2} x}{1+\cot x} + \frac{\cos^{2} x}{1+\tan x}$ હોય,તો $f^{\prime}\left(\frac{\pi}{4}\right)$ શોધો.

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