pre algebra

Reiny can you please help with these 3 problem. 1. a1=-4;an-1-3 this is find the first five terms of the recursively defined sequence. Problem 2 and 3 is write the first terms of the explicitly defined sequence an=4n+2. problem 3 an=2(-3)n-1

asked by mikey
  1. You seem to be persistent in writing your problem in a way that makes no sense.

    Again, I will assume you mean:
    a(1) = -4
    a(n) = a(n-1) - 3

    often this is written with subscripts
    a1 = -4
    an = an-1 - 3

    so
    a1 = -4
    a2 = a1 - 3 = -4-3 = -7
    a3 = a2 - 3 = -7-3 = =10

    continue this pattern for 2 more terms

    problems 2 and 3 make no sense to me
    I thought these were recursively defined sequences. In that case the initial term must be defined, since each new term is found from its previous term.
    With no brackets, who can tell what they mean.

    posted by Reiny
  2. problem 2 and problem 3 is to write the first terms of the explicitly defined sequences. problem 2: a(n)=4n+2. and problem 3: a(n)=2(-3)n-1.

    posted by mikey
  3. i need to write the first five

    posted by mikey

Respond to this Question

First Name

Your Response

Similar Questions

  1. Algebra 2 Honors

    Right now in my class i am learning about sequences and series and im currtently suck on this problem. "A certain sequence is defined recursively by the t1=1 , t2=2, t2n=2t2n-2, t2n+1=3t2n-1. Find the first eight terms of the
  2. algebra 2

    A sequence is defined recursively by a1=1,an=(an-1+1)^2. Write the first 4 terms of the sequence.
  3. Math Help

    Hi! I need help with these two questions. Thanks! 1.) Look for the first four terms for the following sequence below. an=n(n^2-6) 2.) For this question, remember that your answer has to begin with the second term of the following
  4. prealgebra

    please help me to find the first five terms of the recursively defined sequence of this problem with steps, a1=3;an=6an-1.
  5. pre algebra

    what is the first five terms of the the following recursively defined sequence with the steps please. a=1;=3a
  6. Algebra 8th

    For each sequence defined recursively, write the first few terms. Then use the terms to write an explicit equation. a(1)=17 a(n+1)=a(n)-3 And a(1) =20. a(n+1)=1/2*a(n)
  7. Math

    this is a difficult question for me please help! thankyou A sequence is defined recursively by an + 1 = 3an − n, a1 = 2. Find the first six terms of the sequence. a1 = a2 = a3 = a4 = a5 = a6 =
  8. math asap

    this is a difficult question for me please help! thankyou A sequence is defined recursively by an + 1 = 3an − n, a1 = 2. Find the first six terms of the sequence. a1 = a2 = a3 = a4 = a5 = a6 =
  9. calculus

    A) How do you prove that if 0(<or=)x(<or=)10, then 0(<or=)sqrt(x+1)(<or=)10? B) So once that is found, then how can you prove that if 0(<or=)u(<or=)v(<or=)10, then
  10. calculus

    A) How do you prove that if 0(<or=)x(<or=)10, then 0(<or=)sqrt(x+1)(<or=)10? B) So once that is found, then how can you prove that if 0(<or=)u(<or=)v(<or=)10, then

More Similar Questions