1.

Solution of cot^(2) theta + [sqrt(3) + (1)/( sqrt(3))] cot theta + 1= 0is

Answer»

`n PI - (pi)/(6), n pi - (pi)/(3), AA n in Z`
`(n pi)/(4), m pi, n,m in Z`
`(2 n + 1) (pi)/(3), 2 m pi, n m in Z`
`(2 n + 1) (pi)/(6), m pi, n, m in Z`

ANSWER :A


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