S Sasuke New member Aug 23, 2010 #1 2xy^-1 if x=2 and y=1 Now, I think that's (2*2*1)^-1, in which case the answer should be 4^-1 (or 0.4), but I'm not for sure.
2xy^-1 if x=2 and y=1 Now, I think that's (2*2*1)^-1, in which case the answer should be 4^-1 (or 0.4), but I'm not for sure.