document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=381387>Question 381387</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me:<BR>\n" );
document.write( "1. The radian measure of angle containing x degree is: A.pi.x/180 B. pi.x/90 .C other answer(plz explain)<BR>\n" );
document.write( "2. If cos x=1/2, then sin x= ?<BR>\n" );
document.write( "3. If cotx=1, then x= ? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #270498 by </B><A HREF=/tutors/aboutme.mpl?userid=richard1234><B>richard1234(7193)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richard1234><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=richard1234><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=270498\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 1. Answer is A.\r<BR>\n" );
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document.write( "2. If cos x = 1/2 then sin x = sqrt(3)/2 or -sqrt(3)/2. This is due to the Pythagorean identity <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=cos%5E2+%28x%29+%2B+sin%5E2+%28x%29+=+1 ALIGN=MIDDLE  ALT=\"cos%5E2+%28x%29+%2B+sin%5E2+%28x%29+=+1\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
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document.write( "3. If cot x = 1 then tan x = 1. It follows that either x = pi/4 or x = 5pi/4 (if x is between 0 and 2pi) </SPAN>\n" );
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