document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=26058>Question 26058</A>: <I><SPAN STYLE=\"word-break: break-all;\"> ok, i just DONT understand imaginary numbers in problems! i really need help! heres a problem: 7i^3 + 8i^12 +9i^17 -5i^16 = ?\r<BR>\n" );
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document.write( "PLEASE HELP! i dont know what to do with the numbers in front...!!! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #14033 by </B><A HREF=/tutors/aboutme.mpl?userid=venugopalramana><B>venugopalramana(3286)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=venugopalramana><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.geocities.com/venugopalramana/FREE_MATHS_ASSISTANCE.html valign=middle><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=14033\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  7i^3 + 8i^12 +9i^17 -5i^16 = <BR>\n" );
document.write( "PLEASE NOTE THE FOLLOWING <BR>\n" );
document.write( "I=I<BR>\n" );
document.write( "I^2=-1<BR>\n" );
document.write( "I^3=I^2*I=-I<BR>\n" );
document.write( "I^4=(I^2)^2=(-1)(-1)=1<BR>\n" );
document.write( "HENCE IN GENERAL<BR>\n" );
document.write( "(I)^EVEN POWER = -1 OR +1..IT IS +1 IF THE POWER IS DIVISIBLE BY 4 OTHER WISE -1\r<BR>\n" );
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document.write( "(I)^ODD POWER = I OR -I ....IT IS +I IF THE POWER LESS ONE IS DIVISIBLE BY 4 OTHER WISE -I...<BR>\n" );
document.write( "SO NOW YOU CAN DO THE PROBLEM I THINK ..LET US SEE\r<BR>\n" );
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document.write( "7i^3 + 8i^12 +9i^17 -5i^16 = -7I+8+9I-5=3-2I...OK...CLEAR?\r<BR>\n" );
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