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.n= n(n-1)(n+1) for all n > 2. 12. Use induction to prove (1 : 2) +(2-3)+(3-4)...

Question

.n= n(n-1)(n+1) for all n > 2. 12. Use induction to prove (1 : 2) +(2-3)+(3-4)...

.n= n(n-1)(n+1) for all n > 2. 12. Use induction to prove (1 : 2) +(2-3)+(3-4) +...+(n-1).n [9 points) 3

.n= n(n-1)(n+1) for all n > 2. 12. Use induction to prove (1 : 2) +(2-3)+(3-4) +...+(n-1).n [9 points) 3

Answers

3 To prove • (1.2)+ (2.3)+(3.4)+...+(n-1).n = n(n)) (nt) &n22 Proof: We prove that for it do true. LiH.S. (1.2) 2. (2-1). (2+


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