roblem 5. (Pascal's Triangle) Pascal's triangle P, is a trangular array with n + 1 rows, binomial expansion (a + v), where 0 Sisn. For example, Ps is the triangular array each listing the coefficients of the 1331 1464 The term P (60,) is calculated as Pa(i-1,j-1) + P(G-1,j), where 0 S iSs n and 1 Sj