Question

The principal value branch of sec^–1 is ______.

विकल्प

• `[- pi/2, pi/2] - {0}`

• `[0, pi] - {pi/2}`

• (0, π)

• `(- pi/2, pi/2)`

Answer 1

The principal value branch of sec^–1 is `[0, pi] - {pi/2}`.