Find the domain of `sec^(-1)(2x+1)` .

Explanation

`2 x + 1 >= 1` or `2 x + 1 <= 1`
`2 x >= 0` or `2 x <= − 2`

` x >=0` or `x <= − 1`

` x ( − oo , − 1 ] cup [ 0 , oo )`