10. Evaluate given summations two different ways. First, use a difference of two summations, second, rewrite the given summation as suggested and then evaluate. Look for . to fill out and then finish. A) option I: Σ (-2)= ΣJ(- 2: - Σ- (-2)* = k =1 option II Σ(-2)Σ- B) option I.: Ek = Ek- E=; = Pk=1 option II . ΣkΣ-χ".- k =1
10. Evaluate given summations two different ways. First, use a difference of two summations, second, rewrite the given summation as suggested and then evaluate. Look for . to fill out and then finish. A) option I: Σ (-2)= ΣJ(- 2: - Σ- (-2)* = k =1 option II Σ(-2)Σ- B) option I.: Ek = Ek- E=; = Pk=1 option II . ΣkΣ-χ".- k =1
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.2: Arithmetic Sequences
Problem 67E
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Transcribed Image Text:10. Evaluate given summations two different ways. First, use a difference of two
summations, second, rewrite the given summation as suggested and then evaluate. Look
for . to fill out and then finish.
A)
option I.: 20(-2)* = E -,(- 2)* – E-,(-2)* =
option II Σ(-2)* Σ
k = 1'
B)
option I.:
Ek = E=k - E=;k =
'k =1
option II Σ Σ -
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