$\cos ^{-1}\left[\frac{1}{\sqrt{2}}\left(\cos \frac{9 \pi}{10}-\sin \frac{9 \pi}{10}\right)\right]$ નું મુખ્ય મૂલ્ય શોધો.

  • A
    $\frac{3 \pi}{20}$
  • B
    $\frac{17 \pi}{20}$
  • C
    $\frac{7 \pi}{10}$
  • D
    $\frac{\pi}{10}$

Explore More

Similar Questions

$2 \cot ^{-1} \frac{1}{2} - \cot ^{-1} \frac{4}{3}$ ની કિંમત શોધો.

જો $\cos ^{-1} x+\cos ^{-1} y+\cos ^{-1} z=3 \pi$ હોય,તો $x^{2025}+x^{2026}+x^{2027}$ ની કિંમત શોધો.

$\sin ^{-1}\left(\cos \frac{\pi}{13}\right)+\cos ^{-1}\left(\sin \frac{\pi}{13}\right) = $ . . . . . . .

જો $0 < x < \frac{1}{2}$ માટે $y = 2\sin^{-1} \sqrt{1-x} + \sin^{-1} (2\sqrt{x(1-x)})$ હોય,તો $\frac{dy}{dx}$ ની કિંમત શોધો.

$2 \cos ^{-1} x = \sin ^{-1} \left( 2 x \sqrt{1 - x^2} \right)$ એ $x$ ની કઈ કિંમતો માટે સાચું છે?

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