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91Ó°ÊÓ

Calculating sums: Determine the value of each of the sums that

follow. Some can be computed directly, some require the use

of sum formulas, and for some you will have to also compute

a limit .

∑k=141+k2212

Short Answer

Expert verified

The value is434.

Step by step solution

01

Step 1. Given information .

Consider the given sigma function∑k=141+k2212.

02

Step 2. Find the value .

Compute k=1,2,3,4in the given sigma function .

when k=1then a1=1+k2212=98

k = 2 then a2=2

k = 3 then a3=258

k = 4 then a4=92

Compute the sum of role="math" localid="1648724273444" ak=1+k2212=k=1,2,3,4.

⇒98+2+258+92⇒434

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