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Buktikan kesamaan trigonometri berikut. sin^2 6 + sin^2 42

Saluran Edukasi
Saluran Edukasion 2024-04-06T08:54:39
Buktikan kesamaan trigonometri berikut. sin^2 6 + sin^2 42
source: https://youtu.be/4YNWqQ3hb1g

Buktikan kesamaan trigonometri berikut. sin^2 6 + sin^2 42 + sin^2 66 + sin^2 78 = 9/4 Petunjuk: cos 36 = (akar(5)+1)/2

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