The probability that each of the final three rolls is at least as large as the roll preceding it may be expressed in the form where and are relatively prime positive integers. Find
Tõenäosus, et iga viimase kolme rullides on vähemalt sama suur kui rulli eelmise saab väljendada kujul kus ja on suhteliselt peaministri positiivset täisarvu. Leidma