The first two terms of an arithmetic sequence are a_1=2 and a_2=4, and what is a_10, the tenth term

engausidarb 2022-09-12 Answered
The first two terms of an arithmetic sequence are a 1 = 2 and a 2 = 4 , and what is a 10 , the tenth term
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Answers (1)

Vicente Macias
Answered 2022-09-13 Author has 15 answers
a 1 = 2 , a 2 = 4
Common Difference d = a 2 - a 1 = 4 - 2 = 2
nth term of an Arithmetic Sequence is given by the formula,
a n = a 1 + ( n - 1 ) d
Given a 1 = 2 , n = 10 and we found d=2
a 10 = 2 + ( 10 - 1 ) 2 = 2 + 18 = 20
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