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23 July, 02:39

Suppose tanΘ = 3/5, and that Θ is in quadrant I. Find tan2Θ.

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  1. 23 July, 02:51
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    Tan 2 O = 2 tan O / (1 - tan^2 O)

    = 3/5 / (1 - (3/5) ^2)

    = 3/5 * 25/16 = 15/16 Answer
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