document.write( "Question 388511: what is an arithmetic sequence? \n" ); document.write( "
Algebra.Com's Answer #274844 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
A sequence of numbers with a starting value where one number differs from the previous number by a fixed value.
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\n" ); document.write( "Example: 3,5,7,9,11,...: Starting value is 3, difference is 2 or algebraically,
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\n" ); document.write( "\"a%5Bn%5D+=+3%2B%28n-1%29%2A2\"
\n" ); document.write( "\"a%5Bn%5D=3%2B2n-2\"
\n" ); document.write( "\"a%5Bn%5D=2n%2B1\", where n=1,2,3,...
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