document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1079851>Question 1079851</A>: <I><SPAN STYLE=\"word-break: break-all;\">  Use the characteristics of f(t) = sin t to find the value of sin t when t=-21&#960;/4 I badly need your help :-( as I dont really know how to solve this. <BR>\n" );
document.write( "here are the choices to choose from<BR>\n" );
document.write( "a. sin t = 0<BR>\n" );
document.write( "b. sin t = 1<BR>\n" );
document.write( "c. sin t = -&#8730;2/2<BR>\n" );
document.write( "d. sin t = &#8730;2/2 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #694084 by </B><A HREF=/tutors/aboutme.mpl?userid=MathLover1><B>MathLover1(20850)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=MathLover1><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=MathLover1><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=694084\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=f%28t%29+=+sin%28+t%29 ALIGN=MIDDLE  ALT=\"f%28t%29+=+sin%28+t%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >,find the value of <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sin+%28t%29 ALIGN=MIDDLE  ALT=\"sin+%28t%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > when <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t=-21pi%2F4+ ALIGN=MIDDLE  ALT=\"t=-21pi%2F4+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=f%28t%29+=+sin%28+-21pi%2F4%29=1%2Fsqrt%282%29=sqrt%282%29%2F2 ALIGN=MIDDLE  ALT=\"f%28t%29+=+sin%28+-21pi%2F4%29=1%2Fsqrt%282%29=sqrt%282%29%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "answer:\r<BR>\n" );
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document.write( "d. <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sin+%28t%29+=+sqrt%282%29%2F2 ALIGN=MIDDLE  ALT=\"sin+%28t%29+=+sqrt%282%29%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );