5
The sum of the 1st and 21st terms of an arithmetic sequence is 70. The sum of its
1st and 22...
Mathematics, 13.02.2021 09:20, jahazielBrainly15006
5
The sum of the 1st and 21st terms of an arithmetic sequence is 70. The sum of its
1st and 22nd terms is 74.
a) What is its common difference?
b) What is the sum of its 8th and 14th terms?
c) Find its 11th term​
Answers: 2
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