Geometric sequences

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Examples
Lessons
  1. Geometric sequence formula
    Consider the geometric sequence: 2, 6, 18, 54, … .
    1. Identify the common ratio.
    2. Determine the sixth term of the sequence.
    3. Which term in the sequence has a value of 39366?
  2. Determine t1,r,tnt_1,r,t_n for the sequences in which two terms are given:
    t3=18 t_3=18, t6=486t_6=486
  3. Three consecutive terms of a geometric sequence are written in the form
    5(x+2),8x,x2 5(x+2),8-x,x-2
    Find the common ratio and the possible value of each of the three terms.