Prove that the sum of the first n natural numbers is given by this formula: n(n + 1) 1+2 +3 +. .. +n= 2

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.3: Geometric Sequences
Problem 56E
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Prove that the sum of the first n natural numbers is given by this formula:
n(n + 1)
1+ 2+3+. .. +n=
2
Prove that the following statement is true for all positive integers.
1 1 1
+
+
8.
4
1 2" – 1
+
Pn:+
...... ..
2n
Transcribed Image Text:Prove that the sum of the first n natural numbers is given by this formula: n(n + 1) 1+ 2+3+. .. +n= 2 Prove that the following statement is true for all positive integers. 1 1 1 + + 8. 4 1 2" – 1 + Pn:+ ...... .. 2n
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