Class 11MathematicsTrigonometrical Ratios, Functions and IdentitiesTrigonometrical ratios of multiple and sub-multiple angles
EasyThe value of $\sin^{2}\left(\frac{\pi}{8}\right) = $
- 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$\frac{\sqrt{2}-1}{2\sqrt{2}}$
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