`3cot^2 (x) - 1 = 0` Solve the equation.

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Solve the equation `3cot^2(x)-1=0`

`3cot^2(x)=1`

`cot^2(x)=1/3`

`cot(x)=+-sqrt(1/3)`

`cot(x)=+-1/sqrt(3)`

`tan(x)=+-sqrt(3)`

`x=pi/3+pin`

`x=(2pi)/3+pin`

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