Friday

April 18, 2014

April 18, 2014

Posted by **Nina** on Sunday, September 30, 2012 at 5:31am.

- Arithmetic Sequence -
**Steve**, Sunday, September 30, 2012 at 7:47amsince the terms have a constant difference, the difference is 3.

a+6*3 = 2(a+4*3)

a+18 = 2a+24

a = -6

sequence is -6,-3,0,3,6,9,12,15,18,21,24

T7 = 12 = 2*6 = 2T5

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