Mathematics, 25.05.2021 08:10, nickboy52210
the first term of an arithmetic sequence is 10 and the sum of the first five terms is 250,find the sequence
Answers: 3
) = 250![\frac{n}{2} [{2a+(n-1)d}] = 250](/tpl/images/1345/8620/6d35a.png)
![\frac{5}{2} [2*10 + 4d]=250](/tpl/images/1345/8620/950e1.png)
![\frac{5}{2} * 4[5+d]=250](/tpl/images/1345/8620/8090a.png)
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the first term of an arithmetic sequence is 10 and the sum of the first five terms is 250,find the s...
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