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Math Help - cot^(2)x??

  1. #1
    rmn
    rmn is offline
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    cot^(2)x??

    Ok, so I have this math question that asks find the values of x in radian in the interval [0,2pi] such that 3cot^(2)x=1, and im getting stuck, but this is what I have so far..

    cot^(2)x=1/3
    cos^(2)x/sin^(2)x=1/3
    and now how do i get rid of the squared?
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  2. #2
    Math Engineering Student
    Krizalid's Avatar
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    3\cot^2x=1\implies\frac1{\tan^2x}=\frac13\implies\  frac1{\tan x}=\pm\frac1{\sqrt3}

    Find \arctan of something
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