Given x+cx+d=1\frac{x+c}{x+d} = 1x+dx+c=1, what can be inferred about the constants ccc and ddd?
c=dc=dc=d
c≠dc \neq dc=d
c=0,d=0c=0, d=0c=0,d=0
It is impossible for any c,dc, dc,d.