જો $\cos ^{-1} x - \cos ^{-1} \frac{y}{2} = \alpha$,જ્યાં $-1 \leq x \leq 1, -2 \leq y \leq 2, x \leq \frac{y}{2}$ હોય,તો તમામ $x, y$ માટે $4x^2 - 4xy \cos \alpha + y^2$ ની કિંમત શું થાય?

  • A
    $2 \sin ^2 \alpha$
  • B
    $4 \sin ^2 \alpha$
  • C
    $4 \cos ^2 \alpha + 2x^2y^2$
  • D
    $4 \sin ^2 \alpha - 2x^2y^2$

Explore More

Similar Questions

જો $(\cos ^{-1} x)^2-(\sin ^{-1} x)^2 > 0$ હોય,તો

$\tan \left[ \sin^{-1} \left( \frac{3}{5} \right) + \cos^{-1} \left( \frac{3}{\sqrt{13}} \right) \right]$ ની કિંમત શોધો.

$\cot ^{-1}\left(\frac{\sqrt{1+\tan ^2(2)}-1}{\tan (2)}\right)-\cot ^{-1}\left(\frac{\sqrt{1+\tan ^2\left(\frac{1}{2}\right)}+1}{\tan \left(\frac{1}{2}\right)}\right)$ ની કિંમત શોધો.

$x$ ની સાપેક્ષમાં $\cos^{-1} \left( \sqrt{\frac{1+x}{2}} \right)$ નું વિકલન સહગુણક શું છે?

જો $\theta = \tan^{-1} a$,$\phi = \tan^{-1} b$ અને $ab = -1$ હોય,તો $\theta - \phi = $

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