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taurus [48]
3 years ago
8

The first term of an arithmetic sequence is 123 the common difference is 12 and the sum is 1113 how many terms are in the series

Mathematics
1 answer:
S_A_V [24]3 years ago
5 0
You can use this formula of arthenatic series to find sum to get the number of term
sum= n÷2 (2a+(n - 1)d)
n= number of tern = n
a= first term =
d= common difference
sum= 1113
you can find the number of series by putting in them
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