How do you order the following from least to greatest #4 4/5, sqrt19, -sqrt5, -21, sqrt5#?
1 Answer
Explanation:
Notice that
or
One way to think of this when it comes to the order of these two negatives is that
So
Then
That takes care of the negative numbers, but we still have the three positive numbers.
First notice
and also
Therefore
So we know that
and since
then
So we get