document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=365471>Question 365471</A>: <I><SPAN STYLE=\"word-break: break-all;\"> sin^2+cos^2=1 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #260569 by </B><A HREF=/tutors/aboutme.mpl?userid=Sphinx+pinastri><B>Sphinx pinastri(17)</B></A><img src=\"/images/stars/stars-06.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Sphinx+pinastri><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=Sphinx+pinastri><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=260569\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Draw an unit circle and take a dot on the circle.<BR>\n" );
document.write( "The sine and cosine make the catheti of a right triangle.<BR>\n" );
document.write( "Hypotenuse, the radius of the circle equals 1.\r<BR>\n" );
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document.write( "So the identity is just a special case of a Pythagorean<BR>\n" );
document.write( "theorem.<BR>\n" );
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