Question

look here

Answer 1

@jim_thompson5910

Answer 2

which one do you think it is and why?

Answer 3

I think its B

Answer 4

or C

Answer 5

it's B because the '2's and '1's are mixed up. If you pick 2 first, then 2 has to come first for both numerator and denominator. The same applies for 1 as well

Answer 6

Alright, thanks!

Answer 7

no problem

Answer 8

If you mix them up you will get the wrong sign.