SOLUTION: Hi i would like help on geometric Sequences. The Question says Find the common ratio of a geometric sequence which has a first term of 5 and a sum to infinity of 6. The sum t

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Question 203033This question is from textbook Pure Mathematics 1
: Hi i would like help on geometric Sequences.
The Question says Find the common ratio of a geometric sequence which has a first term of 5 and a sum to infinity of 6.
The sum to infinity equation is S"infinity"=(a)/(1-r)
so i changed the a to a 5 and made it equal to 6 so the equation was 6=(5)/(1-r) the answer is 1/6 but i keep getting 5/6 can you please help
Thanx
Peder This question is from textbook Pure Mathematics 1

Answer by vleith(2983) About Me  (Show Source):
You can put this solution on YOUR website!
6=%285%29%2F%281-r%29
6+-+6r+=+5
-6r+=+-1
r+=+1%2F6
As my college calc prof once told me (actually many times told me), slow down. You have all the hard work done. It's the simple mistakes that bite you :)