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Posted: **Tue Jul 12, 2022 12:53 pm**

: Question 8 10 Marks Prove That For Every Positive Integer N 1 2 3 2 3 4 N N 1 N 2 N N 1 N 2 N 3 4 1 (23.6 KiB) Viewed 29 times

Question 8. (10 Marks) Prove that for every positive integer n, 1.2.3+2.3.4+·· + n(n + 1)(n + 2) = n(n + 1)(n+ 2)(n+3)/4 Question 9. (10 Marks) Prove that 6 divides 7" - 1 for all integers n ≥ 0.