= (first term) + ((nth term) -1) · (common difference)
= 5 + (20 - 1) · (-7)
= 5 + (50 - 1) · (-7)2) Given the sequence 5, -2, -9, ...
Find the first term:
Is the sequence arithmetic?...
Mathematics, 25.11.2021 14:10 lexigarwood
2) Given the sequence 5, -2, -9, ...
Find the first term:
Is the sequence arithmetic?
Find the common difference d:
Find the general term an:
Find the 20th term:
Find the sum of the first 50 terms:
Answers: 1
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