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Question

Difficulty Level:

Medium

MCQ

Consider the following expression:

$\sin (\frac{\pi}{8}) \cos (\frac{\pi}{8})+\cos (\frac{\pi}{8}) \sin (\frac{\pi}{8})$

Find the exact value of the expression without a calculator.

Select all that apply :

$\frac{1}{\sqrt{2}}$

$\frac{1}{3}$

$\frac{5}{6}$

$\frac{8}{9}$

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