Question

How can you go from this step to the next step:

Then: \sqrt{(|x| - |y|)^2} ≤ \sqrt{(x-y)^2}
OR:
(|x| - |y|)^2 ≤ (x-y)^2

^ How did they get to this above step?

Answer 1

squaring both sides

Answer 2

Ok thank you.