यदि $\theta+\phi=\frac{\pi}{4}$ है, तो $(1+\tan \theta)(1+\tan \phi)$ का मान क्या होगा?

  • A
    $1$
  • B
    $2$
  • C
    $5/2$
  • D
    $1/3$

Explore More

Similar Questions

सिद्ध कीजिए कि $\cos \left(\frac{\pi}{4}-x\right) \cos \left(\frac{\pi}{4}-y\right)-\sin \left(\frac{\pi}{4}-x\right) \sin \left(\frac{\pi}{4}-y\right)=\sin (x+y)$

यदि $\tan A = \frac{1}{2}$ और $\tan B = \frac{1}{3}$ है,तो $\cos 2A = $

यदि $\sin A + \sin B = C$ और $\cos A + \cos B = D$ है,तो $\sin (A + B)$ का मान ज्ञात कीजिए।

$1 - 2{\sin ^2}\left( {\frac{\pi }{4} + \theta } \right) = $

सिद्ध कीजिए कि $\frac{\sin x+\sin 3x}{\cos x+\cos 3x} = \tan 2x$.

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