G Guest Guest Sep 27, 2006 #1 Write a recursive formula that generates the terms of the following: . . .1, 3, 9, 27 The pattern is as follows: . . .1-->1 . . .3---> 1x3 . . .9--->3x3 . . .27--->3x9 So: t1 = 1 t2 = 3 t3 = 9 I am unsure really how to put it into a recursive formula! so yeah! thanks for your help!

Write a recursive formula that generates the terms of the following: . . .1, 3, 9, 27 The pattern is as follows: . . .1-->1 . . .3---> 1x3 . . .9--->3x3 . . .27--->3x9 So: t1 = 1 t2 = 3 t3 = 9 I am unsure really how to put it into a recursive formula! so yeah! thanks for your help!

stapel Super Moderator Staff member Joined Feb 4, 2004 Messages 15,943 Sep 27, 2006 #2 Re: [MOVED] find a Recursive formula that generates the term bluecow said: The pattern is as follows: . . .1-->1 . . .3---> 1x3 . . .9--->3x3 . . .27--->3x9 Click to expand... So what is the pattern? At each stage, what do you do with the previous term to get the next term? bluecow said: So: t1 = 1, t2 = 3, t3 = 9 Click to expand... I'm not sure what you mean by "so" here, since this is what you were given, what you started with...? Eliz.

Re: [MOVED] find a Recursive formula that generates the term bluecow said: The pattern is as follows: . . .1-->1 . . .3---> 1x3 . . .9--->3x3 . . .27--->3x9 Click to expand... So what is the pattern? At each stage, what do you do with the previous term to get the next term? bluecow said: So: t1 = 1, t2 = 3, t3 = 9 Click to expand... I'm not sure what you mean by "so" here, since this is what you were given, what you started with...? Eliz.

pka Elite Member Joined Jan 29, 2005 Messages 7,818 Sep 27, 2006 #3 \(\displaystyle \L b_1 = 1,\quad n \ge 2\quad \, \Rightarrow b_n = 3b_{n - 1}\)