Question

Simply 3 (sqrt(c^2)) if c is > or equal to 0I can upload a picture

Answer 1

Recall that:

`\begin{gathered} \text{For all x}\in\R \\ \sqrt[]{x^2}=|x|\text{.} \end{gathered}`

Therefore:

`3\sqrt[]{c^2}=3|c|\text{.}`

Now, since c≥0, we get that:

`|c|=c\text{.}`

Substituting the above result in 3|c| we get:

`3\sqrt[]{c^2}=3c\text{.}`

Answer:

`3c\text{.}`