document.write( "Question 379497: For the sequence 1,5,9,13.... , give a formula for its nth term. \n" ); document.write( "
Algebra.Com's Answer #269443 by robertb(5830)\"\" \"About 
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an = a1 + (n-1)d,
\n" ); document.write( "an = 1 + (n-1)4,
\n" ); document.write( "an = 1+4n - 4,
\n" ); document.write( "an = 4n - 3.
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