Buktikan identitas trigonometri berikut. (sin 3 theta+sin 5
Saluranedukasion 2024-06-19T09:29:08.000Z
Buktikan identitas trigonometri berikut. (sin 3 theta+sin 5 theta+sin 7 theta+sin 9 theta)/(cos 3 theta+cos 5 theta+cos 7 theta+cos 9 theta)=tan 6 theta
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