When x is a value, the following expressions are meaningful in the range of real numbers? √x 2. √-x 3. √x+2 4. √1-2x 5 √3x+1 6 & nbsp; & nbsp; & nbsp; & nbsp; √ x 1 / 2 7 & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; √ X-1 / 2 8 √x+1/x

1.x≥0
2.x≤0
3.x≥-2
4.x≤1/2
5.x≥-1/3
6.x>0
7.x≥1/2
8.x>0

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