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Verified answer
Bab TrigonometriMatematika SMA Kelas XI
teta = a
3 tan a = 5 sin a
3 tan a / (5 sin a) = 1
(3/5) . (sin a / cos a)) : (sin a) = 1
(3/5) . (sin a / sin a) . 1/cos a = 1
(3/5) . 1 . 1/cos a = 1
cos a = 3/5
cos a = 0,6
a = 53,13°
a = 360° - 53,13°
a = 306,87°
HP = {53,13° dan 306,87°}