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Chapter 12: Q. 12.18 (page 1170)

Expand the partial sum and find its value:鈭�i=154i

Short Answer

Expert verified

The value of the partial sum is 60.

Step by step solution

01

Step 1. Given information

Thepartialsumisgivenas鈭�i=154iWehavetofindthevalueofthepartialsum.

02

Step 2. Expand the partial sum

Now,Wesubstitutethevalues1,2,3,4,5inorder.鈬�鈭�i=154i=4鈰�1+4鈰�2+4鈰�3+4鈰�4+4鈰�5=4+8+12+16+20=60

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