F(x)=2 sin x,Tentukan F(3/4pi)...

Fungsi Trigonometri

(3/4)π
= (3/4) x 180
= 135°

f(x) = 2 sin x
f(135°) = 2 sin 135°

sin 135
= sin (180 - 45)
= sin 45°
= ( (√2) / 2)

2 . ( (√2)/2)
= √2