document.write( "Question 392679: A geometric sequence has all positive terms. The sum of the first two terms is 15 and the sum of infinity is 27. Find the value of
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Algebra.Com's Answer #278731 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi
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document.write( "sum of the first two terms is 15 for a geometric series
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document.write( ", where r is the common ratio
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document.write( " 27 = 15/(1-r^2)
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document.write( "1-r^2 = 15/27
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document.write( "   r^2 = 12/27 = 4/9
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document.write( "   r = 2/3 sequence has all positive terms..tossing out negative solution for r\r
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document.write( "(b) The first term;
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