document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1005478>Question 1005478</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How do I express cos(theta) in terms of sin(theta)?\r<BR>\n" );
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document.write( "I'm taking an online pre-cal course without a teacher, and I don't understand how to solve this. I do know that <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+sin%5E2%28theta%29+%2B+cos%5E2%28theta%29+=+1+ ALIGN=MIDDLE  ALT=\"+sin%5E2%28theta%29+%2B+cos%5E2%28theta%29+=+1+\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
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document.write( "Would this mean that <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+cos%28theta%29+=+sqrt%281-sin%5E2%28theta%29%29+ ALIGN=MIDDLE  ALT=\"+cos%28theta%29+=+sqrt%281-sin%5E2%28theta%29%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" >?\r<BR>\n" );
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document.write( "Thanks in advance! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #621738 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39620)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=621738\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Same algebra concepts and skills from your earlier algebra courses.  Solve for cosine of theta in terms of sine of theta.  What would you do if you had x^2+y^2=k, and you wanted to solve for x in terms of y?  And then how do you finish this properly, to account for the square root?\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2%2By%5E2=k ALIGN=MIDDLE  ALT=\"x%5E2%2By%5E2=k\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2%2By%5E2-y%5E2=k-y%5E2 ALIGN=MIDDLE  ALT=\"x%5E2%2By%5E2-y%5E2=k-y%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2%2B0=k-y%5E2 ALIGN=MIDDLE  ALT=\"x%5E2%2B0=k-y%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2=k-y%5E2 ALIGN=MIDDLE  ALT=\"x%5E2=k-y%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=0%2B-sqrt%28k-y%5E2%29 ALIGN=MIDDLE  ALT=\"x=0%2B-sqrt%28k-y%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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