document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1053819>Question 1053819</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Given that cos x = 3/5 and sin x is positive. <BR>\n" );
document.write( "What is sin (x -pi),  cos (x- pi), sin (x), sin (x- pi/2), cos (x-pi/2)?\r<BR>\n" );
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document.write( "I believe sin (x) is 4/5 and sin (x-pi/2) is -3/5<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #669201 by </B><A HREF=/tutors/aboutme.mpl?userid=rothauserc><B>rothauserc(4718)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rothauserc><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=rothauserc><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=669201\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The model for this is a 3-4-5 right triangle<BR>\n" );
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document.write( "We find cos^(-1) of 3/5, this is the inverse cos of (3/5) to find degrees of x<BR>\n" );
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document.write( "The angle opposite the side 3 is 36.86 degrees and angle opposite side 4 is 53.13 degrees<BR>\n" );
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document.write( "Note that angle x is 53.13 degrees<BR>\n" );
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document.write( "sin(53.13) = 0.7999 approx 0.80 = 4/5<BR>\n" );
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document.write( "sin(53.13-(180/2)) = -6.0000 = -3/5<BR>\n" );
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