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• nilai maks (n.maks) = 2
• nilai minim (n.minim) = -2
(1)
n.maks = sin 90° × k
2 = 1 × k
k = 2
(2)
sin (60° + m) = n.maks
60° + m = 90°
m = 90-60
m = 30°
persamaan grafik fungsi :
= (1) × (sin [ x + (2)])
= 2 × sin (x + 30°)
= 2.sin (x+30°) #D