यदि $\sin \theta = \frac{2t}{1+t^2}$ और $\theta$ द्वितीय चतुर्थांश में स्थित है, तो $\cos \theta$ का मान क्या होगा?

  • A
    $\frac{1-t^2}{1+t^2}$
  • B
    $\frac{t^2-1}{1+t^2}$
  • C
    $\frac{-\left|1-t^2\right|}{1+t^2}$
  • D
    $\frac{1+t^2}{\left|1-t^2\right|}$

Explore More

Similar Questions

$\cot 12^{\circ} \cot 102^{\circ} + \cot 102^{\circ} \cot 66^{\circ} + \cot 66^{\circ} \cot 12^{\circ}$ का मान ज्ञात कीजिए।

यदि $\sin \theta + \cos \theta = \frac{1}{2}$ है,तो $16(\sin(2\theta) + \cos(4\theta) + \sin(6\theta))$ का मान ज्ञात कीजिए:

यदि $a \tan \alpha + b \tan \beta = (a + b) \tan \left( \frac{\alpha + \beta}{2} \right)$ और $\alpha - \beta \neq 2n\pi$ है,तो $\frac{\cos \beta}{\cos \alpha} = $

व्यंजक $\cos^2(A - B) + \cos^2 B - 2\cos(A - B)\cos A\cos B$ है

Difficult
View Solution

यदि $\cot \theta + \tan \theta = m$ और $\sec \theta - \cos \theta = n$ है,तो निम्नलिखित में से कौन सा सही है?

Difficult
View Solution

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