document.write( "Question 872386: A geometric sequence has a1 = 16 and r = \sqrt{2}2, what is the sum of the first 21 terms? \n" ); document.write( "
Algebra.Com's Answer #526161 by richwmiller(17219)\"\" \"About 
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What is \"r = \sqrt{2}2,\" ? \n" ); document.write( "
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