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Mathematics
Algebra
Radical Expressions
write the restrictions on the variables in the following radical expressions
√5-x
1 answer
The restriction on the variable x in the expression √(5-x) is that the radicand (5-x) cannot be negative. Since the square root of a negative number is imaginary, x cannot be greater than 5. Thus, the restriction on x is x ≤ 5.
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