What is the value of cos15° - cos165°?
A
$$\frac{{\sqrt 3 }}{{\sqrt 2 }}$$
B
$$\frac{2}{{\sqrt 3 - 1}}$$
C
$$\frac{{\sqrt 3 + 1}}{{\sqrt 2 }}$$
D
$$\frac{{\sqrt 3 + 1}}{2}$$
Correct Answer: $$\frac{{\sqrt 3 + 1}}{{\sqrt 2 }}$$
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