જો $\tan \theta = - \frac{1}{\sqrt{10}}$ અને $\theta$ ચોથા ચરણમાં હોય,તો $\cos \theta = $

  • A
    $1/\sqrt{11}$
  • B
    $-1/\sqrt{11}$
  • C
    $\sqrt{\frac{10}{11}}$
  • D
    $-\sqrt{\frac{10}{11}}$

Explore More

Similar Questions

$\tan 1^\circ \tan 2^\circ \tan 3^\circ \tan 4^\circ \dots \tan 89^\circ = $

$\tan x + \frac{\cos x}{1 + \sin x} = $

$\cos 36^{\circ} - \cos 72^{\circ}$ ની કિંમત શોધો.

ત્રિકોણમિતીય વિધેય $\csc(-1410^{\circ})$ ની કિંમત શોધો.

$\sin 50^\circ - \sin 70^\circ + \sin 10^\circ = $

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