Question

The set of values of `sec^-1 (1/2)` is ______.

Answer 1

The set of values of `sec^-1 (1/2)` is Φ.

Explanation:

Since, domain of sec^–1x R – (–1, 1) or `(-oo, -1] ∪ [1, oo)`

So, there is no set of values exist for `sec^-1  1/2`.

So, solution set is Φ