SOLUTION: I need to find the rule of the infinite series starting with 1, 2, 4, 8,... i tried multiplying, using powers, adding and subtracting.. and nothing's worked! please help and g

Question 296293: I need to find the rule of the infinite series starting with
1, 2, 4, 8,...
i tried multiplying, using powers, adding and subtracting..
and nothing's worked! please help and give me tips to do it
faster.. thanks:)
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
I need to find the rule of the infinite series starting with
1, 2, 4, 8,...
-----------
1st: 1 = 2^0
2nd: 2 = 2^1
3rd: 4 = 2^2
4th: 8 = 2^3
.....
nth: 2^(n-1)
------
Rule a(n) = 2^(n-1)
===========================
Cheers,
Stan H.
===========================
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