Buktikan identitas trigonometri berikut:a. (5-10 cos^2
Saluran Edukasion 2024-06-28T17:09:08
Buktikan identitas trigonometri berikut:a. (5-10 cos^2 x)/(sin x-cos x)=5(sin x+cos x) b. cos^4 a-sin ^4 a=1-2 . sin ^2 a
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