* Question Completion Status: Show the following relationship holds for all positive integers: 2 + 4 + . + 2n = n(n + 1) Step 1: Show true for n = 1 TRUE -1(1+1) Step 2: Assume true for an arbitrary integer n = k Step 3: Show true for the next element of the domain. That is, show that From the Induction Hypothesis: 2 + 4 + ... + 2k= k(k + 1) Since this is an equation: 2 + 4 + ... + 2k + 2(k+ 1) = k(k + 1) + 2 +4 + ... + 2k +2(k+1) = k² + k + 2(k+ 1) 2 + 4 + ... + 2k +2(k+1) = Step 4: Therefore, by the Principle of Mathematical Induction for all positive integers: 2 + 4 + ... + 2n = n(n + 1) .

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.4: Mathematical Induction
Problem 30E
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Question Completion Status:
Show the following relationship holds for all positive integers: 2 + 4 + ... + 2n = n(n + 1)
Step 1: Show true for n = 1
TRUE
-1(1+1)
Step 2: Assume true for an arbitrary integer n = k
Step 3: Show true for the next element of the domain. That is, show that
From the Induction Hypothesis: 2 + 4 + ... + 2k= k(k + 1)
Since this is an equation:
2 + 4 + ... + 2k + 2(k+ 1) = k(k + 1) +
2 +4 + ... + 2k +2(k+1) = k² + k + 2(k+ 1)
2 + 4 + ... + 2k +2(k+1) =
Step 4: Therefore, by the Principle of Mathematical Induction for all positive integers: 2 + 4 + ... + 2n = n(n + 1) .
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Transcribed Image Text:Question Completion Status: Show the following relationship holds for all positive integers: 2 + 4 + ... + 2n = n(n + 1) Step 1: Show true for n = 1 TRUE -1(1+1) Step 2: Assume true for an arbitrary integer n = k Step 3: Show true for the next element of the domain. That is, show that From the Induction Hypothesis: 2 + 4 + ... + 2k= k(k + 1) Since this is an equation: 2 + 4 + ... + 2k + 2(k+ 1) = k(k + 1) + 2 +4 + ... + 2k +2(k+1) = k² + k + 2(k+ 1) 2 + 4 + ... + 2k +2(k+1) = Step 4: Therefore, by the Principle of Mathematical Induction for all positive integers: 2 + 4 + ... + 2n = n(n + 1) . ESave and Submit to save and submit. Click Save All Ansuwers to save all answers.
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