The following sequence of dots represents the pentagonal numbers. What is the nth pentagonal number? Justify geometrically the recursive step. ° P₁ = 1 P₁₂ =5 ° ° P3 = 12
The following sequence of dots represents the pentagonal numbers. What is the nth pentagonal number? Justify geometrically the recursive step. ° P₁ = 1 P₁₂ =5 ° ° P3 = 12
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.4: Multiple-angle Formulas
Problem 1E
Question
Use two recursive approaches to solve this problem.
Transcribed Image Text:The following sequence of dots represents the pentagonal numbers. What is the nth pentagonal number? Justify
geometrically the recursive step.
°
P₁ = 1
P₁₂ =5
°
°
P3
=
12
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