Jika sin (A+ B) cos C = 2 sin A cos (B-C), tunjukkan bahwa:
Saluran Edukasion 2024-05-19T01:31:43
Jika sin (A+ B) cos C = 2 sin A cos (B-C), tunjukkan bahwa: tan C = (sin (B - A))/(2 sin A sin B)
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