1.

The value of \(\frac{{\sin 75^\circ - \sin 15^\circ }}{{cos75^\circ + cos15^\circ }}\) is

A. √3
B. \(\frac{\sqrt3}{2}\)
C. \(\frac{1}{\sqrt3}\)
D. \(\frac{1}{\sqrt 2}\)
Answer» D. \(\frac{1}{\sqrt 2}\)


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