Buktikan identitas trigonometri berikut. (sin A+cos

Saluranedukasion 2024-04-27T03:14:39.000Z

Buktikan identitas trigonometri berikut. (sin A+cos A)^2-(sin A-cos A)^2=4 sin A cos A
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Buktikan identitas trigonometri berikut. (sin A+cos A)^2-(sin A-cos A)^2=4 sin A cos A