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Mathematics 6 Online

OpenStudy (anonymous):

Can you help me Solve tan2A - 2tanA = -1 for 0º≤A≤360º. a) 225degrees and 315 degrees b)45º and 225º c)330º d)60º and 240º Given 5tan2A = 2tanA + 6, find A to the nearest tenth of a degree when 180º≤A≤270º. (Hint: Use your calculator.) a)232.7º b)226.9º c)317.6º d)195.4º

13 years ago

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