document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=81283>Question 81283</A>: <I><SPAN STYLE=\"word-break: break-all;\"> find the fourth term of a geometric sequence in which a1=-3 and r=7  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #58269 by </B><A HREF=/tutors/aboutme.mpl?userid=praseenakos@yahoo.com><B>praseenakos@yahoo.com(507)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=praseenakos@yahoo.com><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=praseenakos@yahoo.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=58269\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> QUESTION:\r<BR>\n" );
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document.write( "find the fourth term of a geometric sequence in which a1=-3 and r=7 \r<BR>\n" );
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document.write( "ANSWER:\r<BR>\n" );
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document.write( "A series of the form,\r<BR>\n" );
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document.write( "a1, a1r^1, a1r^2, a1r^3, a1r^4,........... is called a geometric progression.<BR>\n" );
document.write( "where a is the first term and r is the common ratio.\r<BR>\n" );
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document.write( "nth term of a geometric progression is given by the formula,\r<BR>\n" );
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document.write( " n th term = a1r^(n-1)\r<BR>\n" );
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document.write( "here a1 = -3 and   r = 7\r<BR>\n" );
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document.write( "so 4 th term = -3 * (7)^(4-1)\r<BR>\n" );
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document.write( "==>          = -3 * 7 ^ 3\r<BR>\n" );
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document.write( "==>          = -3*343\r<BR>\n" );
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document.write( "==>         = -1029\r<BR>\n" );
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document.write( "So 4 th term = -1029\r<BR>\n" );
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document.write( "Hope you found the explanation useful.\r<BR>\n" );
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document.write( "Regards.\r<BR>\n" );
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document.write( "Praseena.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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