(20 points) Let MODEXP (a, b, c,p) a, b, c and p are positive binary integers such that ab c (mod p)) Show that MODEXP E P. (Note that the most obvious algorithm doesn't run in polynomial time. Hint: try it first where b is a power of 2. (20 points) Let MODEXP (a, b, c,p) a, b, c and p are positive binary integers such that ab c (mod p)) Show that MODEXP E P. (Note that the most obvious algorithm doesn't run in polynomial time. Hint: try it first where b is a power of 2