document.write( "Question 828111: Find the sum of the terms of the geometric sequence 3, 6, 12, 24.
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Algebra.Com's Answer #499042 by josgarithmetic(39618)\"\" \"About 
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Sum of finite terms of geometric sequence, \"a%281-r%5En%29%2F%281-r%29\" using a=first term, r is common ratio between terms. n is the number of terms.\r
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\n" ); document.write( "\n" ); document.write( "Yours, a=3, n=4. r=2.
\n" ); document.write( "Sum is \"3%281-2%5E4%29%2F%281-2%29\"\r
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