લઘુકોણ $A$ અને $B$ માટે,જો $\tan A = 1$ અને $\sin B = \frac{1}{\sqrt{2}}$ હોય,તો $\cos (A + B) = \dots$

  • A
    $0$
  • B
    $1$
  • C
    $\sqrt{2}$
  • D
    $\frac{1}{\sqrt{2}}$

Explore More

Similar Questions

જો $\sin x = \sin 60^{\circ} \cdot \cos 30^{\circ} - \cos 60^{\circ} \cdot \sin 30^{\circ}$ હોય,તો $x = \ldots$ ($^{\circ}$ માં)

$(1+\tan ^{2} \theta)(1-\cos ^{2} \theta) = \dots$

$\sin 48^{\circ} \sec 42^{\circ} + \cos 48^{\circ} \operatorname{cosec} 42^{\circ} = \ldots \ldots \ldots \ldots$

$2 \sin ^{2} \theta+4 \sec ^{2} \theta+5 \cot ^{2} \theta+2 \cos ^{2} \theta-4 \tan ^{2} \theta-5 \operatorname{cosec}^{2} \theta = \dots$

$\Delta ABC$ માં,$m\angle A = 90^\circ$,$AB = 5$,$AC = 12$ અને $BC = 13$ છે. તેથી,$\sin C + \cos C = \ldots$

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