APFIVE Applying the Cosine Sum Identity
Use the cosine sum identity to evaluate $$\cos\left(\frac{\pi}{3}+\frac{\pi}{6}\right)$$.
A
$$\frac{1}{2}$$
B
$$\frac{\sqrt{2}}{2}$$
C
$$\frac{\sqrt{3}}{2}$$
D
$$0$$
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