document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=174439>Question 174439</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 6. true or false: it is not possible to find the exact value of sin75? if fals efind exact value </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #129435 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=129435\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> False. It is possible to find the exact value of sin(75), and here's how:\r<BR>\n" );
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document.write( "First, break up 75 into 45+30 (which are known angles on the unit circle)\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sin%2875%29=sin%2845%2B30%29 ALIGN=MIDDLE  ALT=\"sin%2875%29=sin%2845%2B30%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > \r<BR>\n" );
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document.write( "Remember, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sin%28x%2By%29=sin%28x%29cos%28y%29%2Bcos%28x%29sin%28y%29 ALIGN=MIDDLE  ALT=\"sin%28x%2By%29=sin%28x%29cos%28y%29%2Bcos%28x%29sin%28y%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "So this means that\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sin%2875%29=sin%2845%29cos%2830%29%2Bcos%2845%29sin%2830%29 ALIGN=MIDDLE  ALT=\"sin%2875%29=sin%2845%29cos%2830%29%2Bcos%2845%29sin%2830%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Evaluate each trig function (by use of the unit circle)\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sin%2875%29=%28sqrt%282%29%2F2%29%28sqrt%283%29%2F2%29%2B%28sqrt%282%29%2F2%29%281%2F2%29 ALIGN=MIDDLE  ALT=\"sin%2875%29=%28sqrt%282%29%2F2%29%28sqrt%283%29%2F2%29%2B%28sqrt%282%29%2F2%29%281%2F2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Multiply\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sin%2875%29=sqrt%286%29%2F4%2Bsqrt%282%29%2F4 ALIGN=MIDDLE  ALT=\"sin%2875%29=sqrt%286%29%2F4%2Bsqrt%282%29%2F4\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Combine the fractions.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sin%2875%29=%28sqrt%286%29%2Bsqrt%282%29%29%2F4 ALIGN=MIDDLE  ALT=\"sin%2875%29=%28sqrt%286%29%2Bsqrt%282%29%29%2F4\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "So the exact value of sin(75) is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28sqrt%286%29%2Bsqrt%282%29%29%2F4 ALIGN=MIDDLE  ALT=\"%28sqrt%286%29%2Bsqrt%282%29%29%2F4\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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