How to solve this question? Is it I need to prove it by contradiction
L lldk New member Joined Mar 1, 2020 Messages 35 Mar 22, 2022 #1 How to solve this question? Is it I need to prove it by contradiction Attachments 螢幕擷取畫面 2022-03-22 234956.png 60.2 KB · Views: 11
L lldk New member Joined Mar 1, 2020 Messages 35 Mar 22, 2022 #3 Steven G said: Think inverses Click to expand... could you explain furthermore?
Steven G Elite Member Joined Dec 30, 2014 Messages 14,561 Mar 22, 2022 #4 if \(\displaystyle \beta\) exists then so does \(\displaystyle \beta^{-1}\)
L lldk New member Joined Mar 1, 2020 Messages 35 Mar 22, 2022 #5 Steven G said: if \(\displaystyle \beta\) exists then so does \(\displaystyle \beta^{-1}\) Click to expand... thx! I think I know how to do it now
Steven G said: if \(\displaystyle \beta\) exists then so does \(\displaystyle \beta^{-1}\) Click to expand... thx! I think I know how to do it now
