Let S(n) = 1 + 2 + + n be the sum of the first n natural numbers and let C(n) = 1³+2³+. + n³ be the sum of the first n cubes. Prove the following equalities by induction on n, to arrive at the curious conclusion that C(n) = S² (n) for every n. ... a. S(n) = n(n+1). b. C(n)=(n + 2n³ + n²) = n²(n + 1)².
Let S(n) = 1 + 2 + + n be the sum of the first n natural numbers and let C(n) = 1³+2³+. + n³ be the sum of the first n cubes. Prove the following equalities by induction on n, to arrive at the curious conclusion that C(n) = S² (n) for every n. ... a. S(n) = n(n+1). b. C(n)=(n + 2n³ + n²) = n²(n + 1)².
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.1: Infinite Sequences And Summation Notation
Problem 72E
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