document.write( "Question 901879: what is the nth term of the sequence 4/3,5/9,6/27,7/81 \n" ); document.write( "

Algebra.Com's Answer #547003 by richwmiller(17219) $\"\"$ $\"About$

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The numerators go up by 1
\n" ); document.write( "it is an arithmetic progression
\n" ); document.write( "an = a + (n - 1)d
\n" ); document.write( "An = 4 + 1(n - 1)
\n" ); document.write( "The denominators go up by 3 times
\n" ); document.write( "It is a geometric progression
\n" ); document.write( "Tn = t * r^(n - 1)
\n" ); document.write( "Tn = 3 * 3^(n - 1)
\n" ); document.write( "(3+n)/(3*3^(n -1))
\n" ); document.write( " $\"%283%2Bn%29%2F%283%2A3%5E%28n+-1%29%29\"$ \r
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