1.

The value of sin 18° is

A. \(\frac{\sqrt{5} - 1}{4}\)
B. \(\frac{\sqrt{5} + 1}{4}\)
C. \(\frac{\sqrt{5} - 1}{2}\)
D. \(\frac{\sqrt{5} + 1}{2}\)
Answer» B. \(\frac{\sqrt{5} + 1}{4}\)


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