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Mathematics, 21.06.2019 13:00 DenniJ19

If a and b are the measures of two first quadrant angles and sin a = 4/9 and sin b = 2/5 find sin(a+b).

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If a and b are the measures of two first quadrant angles and sin a = 4/9 and sin b = 2/5 find sin(a+...
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