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Evaluasi cos 3pi – Blog.artikelkeren.com

Evaluasi cos 3pi

Kita harus mengevaluasi cos 3π

Larutan

cos 3π = cos 3 (180)= cos 5400

cos 540° = cos (540) = cos (180 + 360) = -1

Penyelesaian

cos 3π = -1

10

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