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10 September, 16:09

Tanx-cotx=0 solve in radians

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  1. 10 September, 16:15
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    tan x + 1 / tan x = 2

    tan^2 x + 1 = 2 tan x

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

    (tan x - 1) ^2 = 0

    tan x = 1

    x = π/4, 5π/4
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