Show the following are true by exhibiting a 1-1 onto function, or two 1-1 functions, between the two sets. You do not have to prove 1-1 or onto, simply give appropriate functions. (a) Show that the unbounded interval like (0, o) = (x:x > 0) has the same cardinality as R. (b) Show that [0, 1)-(0,1)