The value which refers to the distance of a number from the origin of a number line is called absolute values. It is represented as |a|, which defines the magnitude of any integer ‘a’.
Absolute value of square root of 2
We have learnt that
√2 = 1.41421
Now |√2 |= 1.41421
it is a positive value, so the absolute value applied to √2 primarily keep it unchanged.