matematik.docx - 1 Pada segitiga ABC lancip diketahui cos A = 4/5 dan sin B = 12/13 maka sin C = a 20/65 b 36/65 c 56/65 d 60/65 e 63/65 Pembahasan Jika

# matematik.docx - 1 Pada segitiga ABC lancip diketahui cos A...

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1. Pada segitiga ABC lancip, diketahui cos A = 4/5 dan sin B = 12/13 maka sin C = ... a. 20/65 b. 36/65 c. 56/65 d. 60/65 e. 63/65 Pembahasan: Jika cos A = 4/5, maka: sin A = 3/5

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Unformatted text preview: Jika sin B = 12/13, maka cos B = 5/13 Maka, sin C = sin A . cos B + sin B . cos A = 3/5 . 5/13 + 12/13 . 4/5 = 15/65 + 48/65 = 63/65 Jawaban: e...
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