Hello Guests.
(2/sqrt(5) X sqrt(20) X (8/sqrt(80) I don't understand this question, please answer thank you! :)
Since twice the clip without parenthesis.
I try it this way.
With computer is:
(2 / √5) * √20 * (8 /√80) = 2 * 8 * √(20 / (5 * 80)) = 16 * √0.05 = 3.5777
With great doubt!
Greeting asinus :- )
!