$\sin^{2}\left(\frac{\pi}{8}\right)$ का मान =

  • A
    $\frac{\sqrt{2}+1}{2\sqrt{2}}$
  • B
    $\frac{\sqrt{5}+1}{2\sqrt{2}}$
  • C
    $\frac{\sqrt{5}-1}{2\sqrt{2}}$
  • D
    $\frac{\sqrt{2}-1}{2\sqrt{2}}$

Explore More

Similar Questions

यदि $\cos^3 \theta + \cos^3 \left(\frac{2 \pi}{3} + \theta\right) + \cos^3 \left(\frac{4 \pi}{3} + \theta\right) = \alpha \cos 3 \theta$ है,तो $\alpha$ का मान ज्ञात कीजिए।

यदि $\sin \theta - \cos \theta = \frac{1}{\sqrt{3}}$ है,तो $\sin(2\theta) + \cos(4\theta) + \sin(6\theta) = $

$\sin 20^\circ \sin 40^\circ \sin 60^\circ \sin 80^\circ = $

यदि $\sin^3 x \sin 3x = \sum_{m=0}^n c_m \cos mx$ है,जहाँ $c_0, c_1, c_2, \dots, c_n$ स्थिरांक हैं और $c_n \neq 0$,तो $n$ का मान ज्ञात कीजिए।

Difficult
View Solution

यदि सर्वसमिका $\cos^4 \theta = a \cos 4\theta + b \cos 2\theta + c$ कुछ $a, b, c \in \mathbb{Q}$ के लिए सत्य है,तो $(a, b, c) =$

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