document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=745919>Question 745919</A>: <I><SPAN STYLE=\"word-break: break-all;\"> assuming that cos0=2/7 for an acute angle0, find sin0 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #454072 by </B><A HREF=/tutors/aboutme.mpl?userid=tommyt3rd><B>tommyt3rd(5050)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=tommyt3rd><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=tommyt3rd><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=454072\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Given:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=cos%28theta%29=2%2F7 ALIGN=MIDDLE  ALT=\"cos%28theta%29=2%2F7\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "the fastest way is to use the pythagorean identity:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sin%28theta%29=sqrt%281-cos%28theta%29%5E2%29=sqrt%281-%282%2F7%29%5E2%29 ALIGN=MIDDLE  ALT=\"sin%28theta%29=sqrt%281-cos%28theta%29%5E2%29=sqrt%281-%282%2F7%29%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "which simplifies to...\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%283%2Asqrt%285%29%29%2F7 ALIGN=MIDDLE  ALT=\"%283%2Asqrt%285%29%29%2F7\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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