Quiz (+50): , 2sin(03c0/6)Cos(03c0/6) = , (A.) 1/2 (B.) 221a3/2 (C.) (1/4)(221a2+221a6) (C.) (1/4)(221a2-221a6)

Quiz (+50):
2sin(π/6)cos(π/6) =
(a.) 1/2 (b.) √3/2 (c.) (1/4)(√2+√6) (c.) (1/4)(√2-√6)

Penyelesaian:

$\:$

$\sf 2 \sin( \frac{\pi}{6} ) \cos( \frac{\pi}{6} )$

$\sf= \sin(2 \times \frac{\pi}{6} )$

$\sf= \sin( \frac{\pi}{3} )$

$\sf= \frac{ \sqrt{3} }{ \: \: 2}$

$\:$

Jawaban: opsi (b.) √3/2