Evaluate each arithmetic series described \sum_{m=1}^{40}(3m-6)

opatovaL

opatovaL

Answered question

2021-07-31

Evaluate each arithmetic series described.
m=140(3m6)

Answer & Explanation

curwyrm

curwyrm

Skilled2021-08-01Added 87 answers

Step 1
m=140(3m6)
=m=1403mm=1406
=3m=140mm=1406
Step 2
Formula
i=1n=n(n+1)2
n=1n1=1.n
=3m=140mm=1406
=340x(40+1)26.40
=2460240
=2220
Jeffrey Jordon

Jeffrey Jordon

Expert2022-07-06Added 2605 answers

Answer is given below (on video)

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