Question

what. is. the domain of the function f(x)= x½ ?​

Answer 1

Answer:

domain:[0,infinity]

Step-by-step explanation:

this because x can't be negative as we cannot find square root of negative integers

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Answer 2

Answer:

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Step-by-step explanation:

Domain :

R

Range:

[

1

;

+

∞

[

Explanation:

Let's first search the domain. What we know about square root is that inside have to be a positive number.

So :

x

²

+

1

≥

0

x

²

≥

−

1

We also know that

x

²

≥

0

, so

x

can take every values in

R

.

Let's find the range Now !

We know that x² is a positive or null value, so the minimum is for f(0).

f

(

0

)

=

√

1

+

0

=

1

So the minimum is 1. And because x² is divergent, there's no limits.

So the range is :

[

1

;

+

∞

[