Need help with 'strong' induction, a few questions on this topic in cambridge but they don't provide examples so im not sure how it differs from normal induction (n=1, n=k, n=k+1).
Any help is appreciated.
I need help on question D, i think it's impossible to solve.
Question asks: a 5 digit number is chosen at random. Find the probability:
d) that the digits are distinct and in increasing order.