Question

How do you solve and write the following in interval notation: `x <2` AND `x ≥ 1`?

Answer 1

`x in[1,2)`

Explanation:

Combining the expressions we get:

`1 <= x < 2`, or

`x in[1,2)`.

`x` is allowed to take the value of `1`, therefore, we use a left closed interval "[".

However, `x` cannot be exactly `2`, so we use an open right interval ")".