Babynini
  • Babynini
Find the first five terms of the given recursively defined sequence a_n=a_(n-1)+a_(n-2)+a_(n-3) and a_1=a_2=a_3=1
Mathematics
jamiebookeater
  • jamiebookeater
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Babynini
  • Babynini
@rvc help please!! It's due today and I completely forgot about it :/
anonymous
  • anonymous
You already have the first 3. The recursive formula is saying that each term is the sum of the 3 previous terms. a4 = a1 + a2 + a3
Babynini
  • Babynini
so it's a_4=3 ?

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anonymous
  • anonymous
right
Babynini
  • Babynini
so then i'd find a_5, a_6 and a_7?
anonymous
  • anonymous
I think you only need a5 because a6 is the 6th term and a7 is the 7th
Babynini
  • Babynini
hm ok.
Babynini
  • Babynini
and a_5 would be 5?
anonymous
  • anonymous
yes
rvc
  • rvc
Good job @peachpi :)
anonymous
  • anonymous
thank you @rvc
Babynini
  • Babynini
thanks so much!
rvc
  • rvc
Thank you

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