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12 August, 09:32

Find the exact solutions of the problem algebraically: tan 2x-cot x=0

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  1. 12 August, 09:40
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    Tan 2x - cot x = 0

    2tan x / (1 - tan^2 x) - 1/tan x = 0

    2tan^2 x - (1 - tan^2 x) = 0

    2tan^2 x - 1 + tan^2 x = 0

    3tan^2 x - 1 = 0

    tan^2 x = 1/3

    tan x = + or - 1/√3
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