94,998 views
39 votes
39 votes
For any real number √a²
a
- |al
lal.
-a

User Vinod Kumar
by
2.4k points

1 Answer

8 votes
8 votes

Answer:

|a|

Explanation:

For any positive or negative a, when you square it, the answer is positive.

The square root symbol means the principal square root. For a positive number, the principal square root is positive. To make sure the square root is always non-negative, use absolute value.

Answer: |a|

User Adiant
by
3.3k points