Posted by Lucas on Sunday, February 3, 2013 at 4:27pm.
Eric thinks of 2 sequences.One is geometric and the other arithmetic.Both sequences start with the number 3.The common ratio of the geometric sequence is the same as the common difference of the arithmetic sequence.If the 6th term of the geometric sequence is 96.Find the first 5 terms of the arithmetic

Maths  HELP HELP HELP MNHS, Sunday, February 3, 2013 at 4:43pm
we can get CD by getting the CR using geometric sequence since the common ratio (CR) & common diff (CD)are the same... so,
A sub 6=A sub 1 r^(n1)
96=3r^5
r^5=32
r=2> CD is also 2
THEN,
the first 5 terms of an arithmetic sequence using CD of 2 are:
3, 5, 7, 9, 11
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