document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=976405>Question 976405</A>: <I><SPAN STYLE=\"word-break: break-all;\"> let a be the root of the equation<BR>\n" );
document.write( "25cos^2a + 5 cos a - 12=0 where, pie/2<a<pie then what is tan a equal to? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #598658 by </B><A HREF=/tutors/aboutme.mpl?userid=Cromlix><B>Cromlix(4381)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Cromlix><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=Cromlix><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=598658\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 25cosa^2 + 5cosa - 12 = 0<BR>\n" );
document.write( "(5cosa - 3)(5cosa + 4) = 0<BR>\n" );
document.write( "cos a = 3/5 = 0.6<BR>\n" );
document.write( "53.1 degs, 306.9 degs<BR>\n" );
document.write( "or<BR>\n" );
document.write( "cos a = -4/5 = -0.8<BR>\n" );
document.write( "143.1 degs , 216.9 degs<BR>\n" );
document.write( "Hope this helps:-) </SPAN>\n" );
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