document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=641824>Question 641824</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How do I solve this??\r<BR>\n" );
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document.write( "Find the exact value of the expression.\r<BR>\n" );
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document.write( "sin^2 30 degrees + cos^2 60 degrees = </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #403832 by </B><A HREF=/tutors/aboutme.mpl?userid=DrBeeee><B>DrBeeee(684)</B></A><img src=\"/images/stars/stars-11.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=DrBeeee><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=403832\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> sin(x) = cos(90-x), therefore<BR>\n" );
document.write( "sin(30) = cos(90-30) = cos(60) = 1/2<BR>\n" );
document.write( "Your expression<BR>\n" );
document.write( "(1) sin^2(30) + cos^2(60) simplifies to<BR>\n" );
document.write( "(2) sin^2(30) + sin^2(30) or<BR>\n" );
document.write( "(3) 2*sin^2(30)<BR>\n" );
document.write( "Numerically (3) becomes<BR>\n" );
document.write( "(4) 2*(1/2)^2 = 1/2<BR>\n" );
document.write( "The exact value of (1) is 1/2 </SPAN>\n" );
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