document.write( "Question 1168778: Determine if each of the following is a geometric sequence. If so, determine the common ratio.
\n" ); document.write( "1. 2, 4, 8, 16, 32, . . . .
\n" ); document.write( "2. 1, 5, 9, 13, 17, . . . .
\n" ); document.write( "3. 1, -1, 1, -1, 1, . . . .
\n" ); document.write( "4. 2, 2/3, 2/9, 2/27, 2/81, . . . .
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Algebra.Com's Answer #793393 by ikleyn(52781)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "From your textbook, or from other sources, learn what is a geometric progression and what is its common ratio.\r
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\n" ); document.write( "\n" ); document.write( "Then solve the problem and answer the questions on your own.\r
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\n" ); document.write( "\n" ); document.write( "One good source to learn this subject is the group of lessons\r
\n" ); document.write( "\n" ); document.write( "    - Geometric progressions\r
\n" ); document.write( "\n" ); document.write( "    - The proofs of the formulas for geometric progressions \r
\n" ); document.write( "\n" ); document.write( "    - Problems on geometric progressions\r
\n" ); document.write( "\n" ); document.write( "    - Word problems on geometric progressions\r
\n" ); document.write( "\n" ); document.write( "in this site.\r
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\n" ); document.write( "\n" ); document.write( "Also,  you have this free of charge online textbook in ALGEBRA-II in this site\r
\n" ); document.write( "\n" ); document.write( "    - ALGEBRA-II - YOUR ONLINE TEXTBOOK.\r
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\n" ); document.write( "\n" ); document.write( "The referred lessons are the part of this online textbook under the topic
\n" ); document.write( "\"Geometric progressions\".\r
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\n" ); document.write( "\n" ); document.write( "Save the link to this textbook together with its description\r
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\n" ); document.write( "\n" ); document.write( "Free of charge online textbook in ALGEBRA-II
\n" ); document.write( "https://www.algebra.com/algebra/homework/complex/ALGEBRA-II-YOUR-ONLINE-TEXTBOOK.lesson\r
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\n" ); document.write( "\n" ); document.write( "into your archive and use when it is needed.\r
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