Domain of the square root of x

Asked by maham237 @ 11/02/2021 in Mathematics viewed by 320 People

What is the domain of the function y=sqrt x?

Answered by maham237 @ 11/02/2021

Square root is not defined to for negative values. For negative values, the answer of square root is a complex number which is not in Real Domain.

So any such values, for which the expression is not defined are not in the Domian. So the domian of square root of x will be All real numbers greater than or equal to 0.

This can be expressed as:

[0 , ∞)
or
x ≥ 0

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