document.write( "Question 1152199: which term of the geometric progression -2,8,-32, ....is 2048 \n" ); document.write( "

Algebra.Com's Answer #774157 by ikleyn(52803) $\"\"$ $\"About$

You can put this solution on YOUR website!
.
\n" ); document.write( "

\r\n" );
document.write( "\r\n" );
document.write( "First term is -2;  the common ratio is (-4).\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "The general term   = -.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "So you need find \"n\" from the equation\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "    - = 2048.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "It gives\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "     =  = -1024 = .\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "Hence,  n-1 = 5  and  n = 5+1 = 6.    ANSWER\r\n" );
document.write( "

\r
\n" ); document.write( "\n" ); document.write( "Solved.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

\n" );