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April 1, 2015

April 1, 2015

Posted by **Charmian** on Sunday, September 7, 2008 at 6:10am.

a)Find the 1st term and the common difference of the arithmetic sequence.

b)Find the general term of the arithmetic sequence.

- Mathematics : Arithmetic Sequence -
**Damon**, Sunday, September 7, 2008 at 6:29aman = a1 + (n-1)d

18 = a1 + (5-1)d

27 = a1 + (8-1)d

so

-9 = -3d

d = 3

then a1 = 18 - 12 = 6

so

an = 6 + (n-1)3

- Mathematics : Arithmetic Sequence -
**khadijah**, Monday, June 20, 2011 at 3:47pmcommon difference=3,1st term=6and general term=3+3n

- : Arithmetic Sequence -
**h**, Sunday, September 25, 2011 at 4:38pm13,26,39,52

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