document.write( "Question 1140358: find the nth term of the sequence -2/3,-1/6,1/3,5/6,4/3 \n" ); document.write( "
Algebra.Com's Answer #760873 by MathLover1(20850)\"\" \"About 
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\"-2%2F3\"......\"-1%2F6\"......\"1%2F3\"......\"5%2F6\"......\"4%2F3+\"
\n" ); document.write( "first find differences\r
\n" ); document.write( "\n" ); document.write( "........\"3%2F6\"......\"3%2F6\"......\"3%2F6\"......\"3%2F6\"\r
\n" ); document.write( "\n" ); document.write( "all differences same, means you have an arithmetic sequence with common difference \"d=3%2F6\"\r
\n" ); document.write( "\n" ); document.write( "since irst term is \"a%5B1%5D=-2%2F3\", general formula for nth term will be\r
\n" ); document.write( "\n" ); document.write( "\"a%5Bn%5D=a%5B1%5D%2Bd%28n-1%29\"\r
\n" ); document.write( "\n" ); document.write( "\"a%5Bn%5D=-2%2F3%2B%283%2F6%29%28n-1%29\"-> nth term\r
\n" ); document.write( "\n" ); document.write( "check:
\n" ); document.write( "\"a%5B1%5D=-2%2F3%2B%283%2F6%29%281-1%29\"
\n" ); document.write( "\"a%5B1%5D=-4%2F6%2B%283%2F6%29%2A0\"
\n" ); document.write( "\"a%5B1%5D=-4%2F6+\"...simplify
\n" ); document.write( "\"a%5B1%5D=-2%2F3+\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"a%5B2%5D=-2%2F3%2B%283%2F6%29%282-1%29\"
\n" ); document.write( "\"a%5B2%5D=-4%2F6%2B%283%2F6%29\"
\n" ); document.write( "\"a%5B2%5D=-1%2F6+\"\r
\n" ); document.write( "\n" ); document.write( "\"a%5B3%5D=-2%2F3%2B%283%2F6%29%283-1%29\"
\n" ); document.write( "\"a%5B3%5D=-2%2F3%2B%283%2F6%292\"
\n" ); document.write( "\"a%5B3%5D=-2%2F3%2B1+\"
\n" ); document.write( "\"a%5B3%5D=1%2F3++\"\r
\n" ); document.write( "\n" ); document.write( "and so on\r
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