10. Prove by mathematical induction that E k (k + 1) = n (n + 1)(n + 2)/3 1sksn 11. Prove by mathematical induction that 2k (k – 1) =(n + 1)n(n – 1) 1sksn

Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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Prove by mathematical induction that ?

10. Prove by mathematical induction that
E k (k + 1) = n (n + 1)(n + 2)/3
1sksn
11. Prove by mathematical induction that
2k (k – 1) =(n + 1)n(n – 1)
1sksn
Transcribed Image Text:10. Prove by mathematical induction that E k (k + 1) = n (n + 1)(n + 2)/3 1sksn 11. Prove by mathematical induction that 2k (k – 1) =(n + 1)n(n – 1) 1sksn
Expert Solution
Step 1

Given expression:

(10)

                                                  Algebra homework question answer, step 1, image 1

First , we check if it is true for n = 1 , by putting k=1 and n = 1, we get:

Algebra homework question answer, step 1, image 2

Hence, 

R.H.S=L.H.S

So it is true for n=1

                                                    

                                       

 

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