How do you find the first five terms given a_1=6 and a_(n+1)=a_n+n+3?

vballa15ei 2022-09-14 Answered
How do you find the first five terms given a 1 = 6 and a n + 1 = a n + n + 3 ?
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Answers (1)

Maggie Tanner
Answered 2022-09-15 Author has 18 answers
As a n + 1 = a n + n + 3
a 2 = a 1 + 1 + 3 = 6 + 1 + 3 = 10
a 3 = a 2 + 2 + 3 = 10 + 2 + 3 = 15
a 4 = a 3 + 3 + 3 = 15 + 3 + 3 = 21
a 5 = a 4 + 4 + 3 = 21 + 4 + 3 = 28
Hence first five term are { 6 , 10 , 15 , 21 , 28 , ... ... ... . . }
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