1.

If 4 cot 2 theta = cot^(2) theta - tan ^(2) theta " then " theta =

Answer»

`n pi PM (pi)/(6) , n in Z`
`n pi pm (pi)/(3) , n in Z`
`n pi pm (pi)/(4), n in Z`
`(2 n + 1) pm (pi)/(2), n in Z`

Answer :C


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