document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=837112>Question 837112</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How do I solve If sin (theta)equals 4/5 , and i need to find cos(theta) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #504485 by </B><A HREF=/tutors/aboutme.mpl?userid=doodles><B>doodles(24)</B></A><img src=\"/images/stars/stars-07.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=doodles><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=504485\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Since 4/5 is not a common angle so we have to discover what cos is through Pythagorean theorem.  Namely, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a%5E2%2Bb%5E2=c%5E2 ALIGN=MIDDLE  ALT=\"a%5E2%2Bb%5E2=c%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" > Furthermore, One needs to remember cos actually equals adjacent/hypotenuse and sin is equal to opposite/hypotenuse. In other words we need to find adjacent because we know opposite = 4 and hypotenuse is = to 5\r<BR>\n" );
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document.write( "So: \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a%5E2%2B4%5E2=5%5E2 ALIGN=MIDDLE  ALT=\"a%5E2%2B4%5E2=5%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" > --> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a%5E2+=+5%5E2-4%5E2 ALIGN=MIDDLE  ALT=\"a%5E2+=+5%5E2-4%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" > --> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a%5E2=25-16 ALIGN=MIDDLE  ALT=\"a%5E2=25-16\"   DISABLED_style= \"max-width:90%; height:auto;\" > --> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a%5E2=9 ALIGN=MIDDLE  ALT=\"a%5E2=9\"   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=a+=3 ALIGN=MIDDLE  ALT=\"a+=3\"   DISABLED_style= \"max-width:90%; height:auto;\" > \r<BR>\n" );
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document.write( "Now that we have adjacent we can get cos. \r<BR>\n" );
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document.write( "So adjacent/hypotenuse and cos is equal to 3/5  </SPAN>\n" );
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