tabbyrain064 tabbyrain064

13-05-2022
Mathematics

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A sequence is defined recursively by the given formulas. Find the first five terms of the sequence.

an = 2(an − 1 + 4) and a1 = 5 (the n and n-1 is suppose to be a subscript, I just can't figure out how to make it like that)

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Аноним Аноним

13-05-2022

a_n=2(a_n-1 +4)
a_n=2a_n-1+8

So

a_2

2a_1+8=2(5)+8=18

a_3

2a_2+8=2(18)+8=44

a_4

2a_3+8=2(44)+8=96

a_5

2a_4+8=2(96)+8=200

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