document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=64560>Question 64560</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Express the follolwing in terms of x {x>0}<BR>\n" );
document.write( "   sin{cos^-1{x/2}} </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #45174 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=45174\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> sin{cos^-1{x/2}}<BR>\n" );
document.write( "Draw a right triangle in the 1st quadrant.<BR>\n" );
document.write( "The hypotenuse is the radius is 2<BR>\n" );
document.write( "The side adjacent to the reference angle is \"x\"<BR>\n" );
document.write( "Therefore the side opposite the reference angle is sqrt(4-x^2)<BR>\n" );
document.write( "Therefore the sin of the reference angle is [sqrt(4-x^2)]/2<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );