2007-10-25 10:42:21 · 3 answers · asked by George 1 in Science & Mathematics ➔ Mathematics
find the answer with a variable please
2007-10-25 10:45:43 · update #1
you may need to use exponents
2007-10-25 11:38:55 · update #2
There are potentially many answers. But one possibility is that the terms are alternating between double and triple the prior value.
1 tripled --> 3
3 doubled --> 6
6 tripled --> 18
18 doubled --> 36
36 tripled --> 108
108 doubled --> 216
216 tripled --> 648
Another way to say it, a(1) = 1, a(2) = 3, a(n+2) = 6a(n)
Or:
a(n)= (3-(-1)^n)*6^floor(n/2) / 4
2007-10-25 10:46:58 · answer #1 · answered by Puzzling 7 · 0⤊ 0⤋
1,3,6,18
times 2 then times 3 times 2 times 3
2007-10-25 10:57:41 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Der
Oim thimple . . . . . . .
2007-10-25 10:49:22 · answer #3 · answered by Anonymous · 0⤊ 0⤋