[MOVED] find a Recursive formula that generates the terms of

G

Guest

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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

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Feb 4, 2004
Messages
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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
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
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
\(\displaystyle \L
b_1 = 1,\quad n \ge 2\quad \, \Rightarrow b_n = 3b_{n - 1}\)
 
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