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Mathematics, 21.06.2019 22:00
Prove sin2a + cos2a - 1 / sin2a + cos2a + 1 = 1 - tana / 1 + cota
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Mathematics, 22.06.2019 00:20
Which shows how to solve the equation 3/4x=6 for x in one step?
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A+b=95
4a+1.50b=267.5...
4a+1.50b=267.5...
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