document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=148350>Question 148350</A>: <I><SPAN STYLE=\"word-break: break-all;\"> WHAT IS THE EXACT VALUE OF THE FOLLOWING?\r<BR>\n" );
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document.write( "1) SIN 9PI/2\r<BR>\n" );
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document.write( "2) COSECANT 7PI </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #110116 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=110116\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> WHAT IS THE EXACT VALUE OF THE FOLLOWING? <BR>\n" );
document.write( "1) SIN 9PI/2 <BR>\n" );
document.write( "2) COSECANT 7PI<BR>\n" );
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document.write( "This one is old, your need for it might have passed, but...<BR>\n" );
document.write( "1) sin(9*PI/2)<BR>\n" );
document.write( "2*PI is a complete revolution, so subtract that until the value is less than 2PI.<BR>\n" );
document.write( "sin(9PI/2) + sin([9PI/2 - 2PI -2PI]) = sin(PI/2)<BR>\n" );
document.write( "= 1.<BR>\n" );
document.write( "If it's easier to follow use degrees.<BR>\n" );
document.write( "9PI/2 = 9*180/2 deg = 810 degs<BR>\n" );
document.write( "810 - 360 = 450<BR>\n" );
document.write( "450 - 360 = 90<BR>\n" );
document.write( "sin(90) = 1<BR>\n" );
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document.write( "csc(7PI)<BR>\n" );
document.write( "Again, subtract 2PI as many times as possible while remaining positive.<BR>\n" );
document.write( "csc(7PI) = csc(PI)<BR>\n" );
document.write( "csc(PI) = 1/[sin(PI)] = 1/0<BR>\n" );
document.write( "it's infinity, or undefined. </SPAN>\n" );
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