document.write( "Question 1151515: Hi yes i need the 100th and the nth term \r
\n" ); document.write( "\n" ); document.write( "1,4,16,64,256
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Algebra.Com's Answer #773287 by MathLover1(20850)\"\" \"About 
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\n" ); document.write( " the \"100\"th and the \"n\"th term\r
\n" ); document.write( "\n" ); document.write( "\"1\",\"4\",\"16\",\"64\",\"256\"\r
\n" ); document.write( "\n" ); document.write( "Let's examine sequence so that we can find a formula to express its \"n\"th term. It looks like geometric sequence.\r
\n" ); document.write( "\n" ); document.write( "let see what is the fixed number, called the common ratio (\"r\") :\r
\n" ); document.write( "\n" ); document.write( "\"r=4%2F1=4+\" or\"+r=16%2F4=4\"\r
\n" ); document.write( "\n" ); document.write( "so, the common ratio is \"r=4\"\r
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\n" ); document.write( "\n" ); document.write( "and, the \"n\"th term formula will be \"a%5Bn%5D+=+4%5E%28n+-+1%29\" \r
\n" ); document.write( "\n" ); document.write( "check given terms:\r
\n" ); document.write( "\n" ); document.write( "\"a%5B1%5D=1\".......if \"n=1\", \"a%5B1%5D+=+4%5E%281+-+1%29=+4%5E0=1\"->true
\n" ); document.write( "\"a%5B2%5D=4\"...=>if \"n=2\",\"a%5B2%5D+=+4%5E%282+-+1%29=4%5E1=4\"->true
\n" ); document.write( "\"a%5B3%5D=16\"...=> if\"+n=3\",\"+a%5B3%5D+=+4%5E%283+-+1%29=4%5E2=16\"->true
\n" ); document.write( "\"a%5B4%5D=64\"...=>if \"n=4\",\"a%5B4%5D+=+4%5E%284+-+1%29=+4%5E3=64\"->true
\n" ); document.write( "\"a%5B5%5D=256\"...=>if \"n=5\",\"a%5B5%5D+=+4%5E%285+-+1%29=+4%5E4=256\"->true\r
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\n" ); document.write( "\n" ); document.write( "so, it is the \"n\"th term formula:\r
\n" ); document.write( "\n" ); document.write( "\"a%5Bn+%5D=+4%5E%28n+-+1%29\" (for all terms given)\r
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\n" ); document.write( "the \"100\"th term is:\r
\n" ); document.write( "\n" ); document.write( "\"n=100\"\r
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