1.

The general solution of the equation `tan^(2)x=1` isA. `n pi+(pi)/(4)`B. `n pi-(pi)/(4)`C. `n pi (pi)/(4)`D. `2n pi pm (pi)/(4)`

Answer» Correct Answer - C
Given `tan^(2)x=1`
`Rightarrow tan^(2)x=1^(2)`
`Rightarrow tan^(2)x=tan^(2)""(pi)/(4)`
`Rightarrow x=n pi pm (pi)/(4)`


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