Asked by Anonymous
Find the sum of the odd integers from 1 through 49.
Answers
Answered by
Steve
use what you know about arithmetic sequences, in this case
a = 1
d = 2
n = (49-1)/2 + 1 = 25
S25 = 25/2 (1+49)
a = 1
d = 2
n = (49-1)/2 + 1 = 25
S25 = 25/2 (1+49)
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