February 2019 1 30 Report
Jika cos A = 3/5, sin B = 12/13, 0 < A < π/2, Dan π/2 < B < π, tentukan nilai dari :
A. Sin A Cos B + Cos A Sin B
B. Cos A Cos B - Sin A Sin B
C. Tan A + Tan B per 1 - Tan A . Tan B ’
D. Cos A Sin B - Sin A Cos B

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