Asked by Lucy
Find the twelfth term of the geometric sequence: 1/16, 1/8, 1/4....
Common ratio: 1/2
I got the ratio by dividing 1/16 by 1/8 which gave me 1/2 and I divided 1/8 by 1/4 to get 1/2-----That is how I got a common ratio of 1/2.
In order to obtain the 12th term I think I messed up somewhere:
a12=(1/16)(1/2)^12-1 which gave me 3.05E
I don't think that is right but don't know where I went wrong.
Help!!!
Thanks
Common ratio: 1/2
I got the ratio by dividing 1/16 by 1/8 which gave me 1/2 and I divided 1/8 by 1/4 to get 1/2-----That is how I got a common ratio of 1/2.
In order to obtain the 12th term I think I messed up somewhere:
a12=(1/16)(1/2)^12-1 which gave me 3.05E
I don't think that is right but don't know where I went wrong.
Help!!!
Thanks
Answers
Answered by
Damon
3.05 E-5 not 3.05 E
Multiply by 1/2 11 times and the result is likely to be very small.
Multiply by 1/2 11 times and the result is likely to be very small.
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