October 2018 1 51 Report
Tentukan himpunan penyelesaian persamaan trigonometri berikut untuk x pada interval berikut !
a. 1 + 2 sin 3x = 0, pada interval 0° ≤ x ≤ 360°
b. √2 cos (3x + 15°) - 1 = 0, pada interval 0° ≤ x ≤ 360°
c. tan (2x + π/6) = √3, pada interval 0 ≤ x ≤ 2π
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