Mathematics, 18.04.2021 01:20 1109pacey

Given: a and B are first-quadrant angles, sin a =5/13, and cos B = 3/5 evaluate sin(a + b) -33/65
33/65
63/65
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Given: a and B are first-quadrant angles, sin a =5/13, and cos B = 3/5 evaluate sin(a + b) -33/65