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April 18, 2014

Homework Help: math

Posted by Jon on Thursday, December 13, 2007 at 2:55pm.

1)Find a1 in a geometric series for which Sn=300,r=-3,and n=4
A)15
B)15/2
C)-15
D)1/15
I chose A

5)Find the fifth term of the sequence in which a1=-3,and aN+1=3aN-n
A)-301
B)-99
C)-193
D)-341
I dont know

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