Determine the sum of the first twenty five terms of the sequence whose first five terms are 5,14,23,32 and 41
1 answer:
Answer:
Step-by-step explanation:
This is an arithmetic sequence. Each term is 9 more than the preceding term.
The 25th term is 5+24*9 = 1085.
Sum of first 25 terms is 25(5+1085)/2 = 13625
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