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Math, 04.10.2019 22:00 yachna18

Find the acute angles a and b if is greater than b if sin a + 2b = 2 root 3 by 2 and cos a + 4 = 20

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Find the acute angles a and b if is greater than b if sin a + 2b = 2 root 3 by 2 and cos a + 4 = 20...
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