Buktikan identitas trigonometri berikut. a. sin^2 A-sin^2 A

Saluran Edukasion 2024-01-17T21:29:08

Buktikan identitas trigonometri berikut. a. sin^2 A-sin^2 A cos^2 A = sin^4 A b. (sin^3 theta+cos^3 theta)/(sin theta+cos theta)=1-sin theta cos theta c. sin^4 A+2sin^2 A cos^2 A+cos^4 A=1
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