document.write( "Question 207759: URGENT QUESTION...
\n" ); document.write( "in the following sequence of numbers a, ar, ar^2, ar^3...
\n" ); document.write( "a= 1st term (t1)
\n" ); document.write( "fina an expression in terms of a,r for
\n" ); document.write( "i) 8 th term (t8)
\n" ); document.write( "ii) 11 th term (t11)
\n" ); document.write( "iii) in the sequence 3,6,12..
\n" ); document.write( "find the value of the 15th term.
\n" ); document.write( "

Algebra.Com's Answer #157154 by Alan3354(69443)\"\" \"About 
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in the following sequence of numbers a, ar, ar^2, ar^3...
\n" ); document.write( "a= 1st term (t1)
\n" ); document.write( "= at^0
\n" ); document.write( "term t = ar^(t-1)
\n" ); document.write( "-------------------
\n" ); document.write( "find an expression in terms of a,r for
\n" ); document.write( "i) 8 th term (t8)
\n" ); document.write( "= ar^7
\n" ); document.write( "ii) 11 th term (t11)
\n" ); document.write( "= ar^10
\n" ); document.write( "iii) in the sequence 3,6,12..
\n" ); document.write( "find the value of the 15th term.
\n" ); document.write( "r = 2
\n" ); document.write( "t1 = 3 = 3*r^0
\n" ); document.write( "t15 = 3*2^14 = 3*16384
\n" ); document.write( "t15 = 49152
\n" ); document.write( "
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