Can you please explain me the inequality in the given image of x²≤a², so -a≤x≤a.

Asked by Varsneya Srinivas | 29th Dec, 2016, 09:43: AM

Expert Answer:

The graph of x²≤a², which is, -a≤x≤a is as shown in the figure below.
Since -a≤x≤a, it means x can take any of the real values from -a to a including
-a and a (cause of the less than or equal to symbol).
So, in the figure below, the red part is the graph of the inequality.
The two red completely filled end-points represent the points -a and a which are also included 
in the solution.

Answered by Rebecca Fernandes | 29th Dec, 2016, 11:00: AM