Question: 1. Mathematical Induction: Verify using induction that each equation is true for every positive integer n. i. 2i - 1 =1+3+5+...+(2n-1) =n 7=1 ii i(i+1)

1. Mathematical Induction: Verify using induction
1. Mathematical Induction: Verify using induction that each equation is true for every positive integer n. i. 2i - 1 =1+3+5+...+(2n-1) =n 7=1 ii i(i+1) =1.2+2.3+3.4+... +no(n+1)= "(n+1)(n+2) 7=1 1= iiin i.i!=1.1+2.21+3.3!+... + n.n!= (n +1)!-1 1=1 iv. Liz =12 + 22 + 32 + ...+ n?= - _ n(n + 1)(2n +1) 6 1= 1 V. (-1) "+1 12 =12 -22 +32 -42...+ (-1)"+1 /2 _ (1)"*n(n+1) 2 vi. 51 =13 + 23 + 33 + ... + 13 = n ( n + 1) ]2 2 2. Prove by Mathematical Induction that n' -7n + 12n is nonnegative whenever n is an integer with n 2 3 . 3. Set: Let the universal set U = {1, 2,3, ...,10}. Let A = {1, 4, 7, 10}, B= {1, 2, 3, 4, 5}, and C= {2, 4, 6, 8} . List the elements of each set. 1. AUB ii. Bnc ili. A-B iv. B- A V. A Vi. U - C vii. U vili. IX. Bno X. AVU xi. BOU xii. An( BUC) xili. Bn(C- A) xiv. (AnB) -C 4. Find the terms of the sequence {a, } , where a, = 2(-3)" + 5" ao ii a 2

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