यदि $x + y = 3 - \cos 4\theta$ और $x - y = 4 \sin 2\theta$ है,तो:

  • A
    $x^4 + y^4 = 9$
  • B
    $\sqrt{x} + \sqrt{y} = 16$
  • C
    $x^3 + y^3 = 2(x^2 + y^2)$
  • D
    $\sqrt{x} + \sqrt{y} = 2$

Explore More

Similar Questions

यदि $A = 130^\circ$ और $x = \sin A + \cos A$ है,तो

$\cos \frac{2 \pi}{15} \cos \frac{4 \pi}{15} \cos \frac{8 \pi}{15} \cos \frac{14 \pi}{15} = $

$\cos^2 10^o - \cos 10^o \cos 50^o + \cos^2 50^o$ का मान क्या है?

यदि $f(\theta) = \cos^3 \theta + \cos^3 \left(\frac{2\pi}{3} + \theta\right) + \cos^3 \left(\theta - \frac{2\pi}{3}\right)$ है,तो $f\left(\frac{\pi}{5}\right) = $

$\frac{2\sin \theta \tan \theta (1 - \tan \theta ) + 2\sin \theta \sec^2 \theta}{(1 + \tan \theta)^2} = $

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