SOLUTION: 1) Evaluate the series 7 Σ K k=1 A. 19 B. 23 C. 28 D. 49 2) Evaluate the series 12 Σ k^2 k=1 A. 78 B. 213 C. 497 D. 650

Algebra ->  Sequences-and-series -> SOLUTION: 1) Evaluate the series 7 Σ K k=1 A. 19 B. 23 C. 28 D. 49 2) Evaluate the series 12 Σ k^2 k=1 A. 78 B. 213 C. 497 D. 650      Log On


   



Question 1085482: 1) Evaluate the series
7
Σ K
k=1
A. 19
B. 23
C. 28
D. 49
2) Evaluate the series
12
Σ k^2
k=1
A. 78
B. 213
C. 497
D. 650

Answer by Edwin McCravy(20056) About Me  (Show Source):
You can put this solution on YOUR website!
1)   sum%28k%2Ck=1%2C7%29=1%2B2%2B3%2B4%2B5%2B6%2B7=28

Or you can use the formula with n = 7



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2)   %22%22=%22%22

1%2B4%2B9%2B16%2B25%2B36%2B49%2B64%2B81%2B100%2B121%2B144=650

Or you can use the formula with n = 12



Edwin