Question

Multiply √...?

Answer 1

\[40.\sqrt{2/2} \] What can I do?

Answer 2

did you know that 2/2 = 1 @vorta ?

Answer 3

Yes but the √ is only in the top 2. (cos45º)

Answer 4

wait...we are doing \[40 \times \sqrt {\frac 22}\]
right??

Answer 5

do you mean \[40 \times \frac{\sqrt 2}2\]

Answer 6

YES!

Answer 7

\[40 \times \frac{\sqrt 2}2 \implies \frac{40}2 \times \sqrt 2\]
do you agree?

Answer 8

Humm, I really don't know...is it right? (:

Answer 9

what about PEMDAS do you know that?

Answer 10

Ohhh ok! I understood now!

Answer 11

Thanks!

Answer 12

welcome