document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=101199>Question 101199</A>: <I><SPAN STYLE=\"word-break: break-all;\"> find the exact value of each.\r<BR>\n" );
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document.write( "a. cos(theta)/2 if sin(theta)=12/13 and 0<theta<90degrees<BR>\n" );
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document.write( "b. sin[cos^-1(0) - sin^-1(1/2)] </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #73661 by </B><A HREF=/tutors/aboutme.mpl?userid=Nate><B>Nate(3500)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Nate><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=73661\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a. cos(theta)/2 if sin(theta) = 12/13 and 0 < theta < 90 degrees<BR>\n" );
document.write( "cos(theta)^2 = 1 - sin(theta)^2<BR>\n" );
document.write( "cos(theta) = sqrt( 1 - sin(theta)^2 )<BR>\n" );
document.write( "cos(theta) = sqrt( 1 - (12/13)^2 ) or cos(theta) = sqrt( 1 - 0^2 )<BR>\n" );
document.write( "cos(theta) = sqrt( 25/169 ) or cos(theta) = sqrt( 1 )<BR>\n" );
document.write( "cos(theta) = 5/13 or cos(theta) = 1   *cos(theta) = 1 for theta = 0 ~ Cancel<BR>\n" );
document.write( "cos(theta)/2 = 5/26\r<BR>\n" );
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document.write( "b. sin[cos^-1(0) - sin^-1(1/2)]<BR>\n" );
document.write( "sin[pi/2 - pi/6]<BR>\n" );
document.write( "sin[pi/3]<BR>\n" );
document.write( "sqrt(3)/2 </SPAN>\n" );
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