For "less than or equal to" you can use <=
For "greater than or equal to" you can use >=
√(15(x−1)) / √(2x^2)
Value under square root must be ≥ 0
Value in denominator not = 0
15(x−1) ≥ 0
x−1 ≥ 0
x ≥ 1
2x^2 > 0
x^2 > 0
x ≠ 0
Combining both inequalities, we get:
x ≥ 1
