1003164105 | math4u.vsb.cz

SubArea:

Power and radical functions

Level:

Project ID:

1003164105

Source Problem:

Accepted:

1

Clonable:

1

Easy:

1

Let

f (x) = \sqrt{x^{2}}

and

g (x) = x

. Identify which of the following statements is true.

f (- 3) = 3

f (- 5) = - 5

\forall x \in R : f (x) = g (x)

\forall x \in R : f (x) = - g (x)