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August 30, 2014

August 30, 2014

Posted by **Ama** on Thursday, November 22, 2012 at 12:25am.

an = 3an − 1 + 9 and a1 = 2

- precalculus -
**Bosnian**, Thursday, November 22, 2012 at 1:41amIf yourexpression mean :

an = 3 a ( n − 1 ) + 9

a1 = 2

then

a2 = 3 a1 + 9 = 3 * 2 + 9 = 6 + 9 = 15

a3 = 3 a2 + 9 = 3 * 15 + 9 = 45 + 9 = 54

a4 = 3 a3 + 9 = 3 * 54 + 9 = 162 + 9 = 171

a5 = 3 a4 + 9 = 3 * 171 + 9 = 513 + 9 = 522

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