document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1058392>Question 1058392</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Which answer is equal to this expression?<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+sin%28-x%29%2Fcos%28-x%29+ ALIGN=MIDDLE  ALT=\"+sin%28-x%29%2Fcos%28-x%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "A.) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+tan%28x%29+ ALIGN=MIDDLE  ALT=\"+tan%28x%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "B.) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+tan%28-x%29+ ALIGN=MIDDLE  ALT=\"+tan%28-x%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "C.) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+-tan%28x%29+ ALIGN=MIDDLE  ALT=\"+-tan%28x%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "D.) B and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+C+ ALIGN=MIDDLE  ALT=\"+C+\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #673441 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=673441\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> You need to know and recognize the definition for .... for tangent function.\r<BR>\n" );
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document.write( "The choices presented are an attempt to trick you regarding the evenness of any trigonometric functions.  Make reference to the unit circle to help think through this clearly.  Is the answer,  just B?  Or is it B and C ?\r<BR>\n" );
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document.write( "Create a general example for yourself and refer to the point on the Unit Circle.  Sketch a point in, for example quadrant number 3.  If x is positive, then -x is negative, so rotation would go clockwise to reach into quadrant 3.  \r<BR>\n" );
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document.write( "Sine of -x is same as -sine of x. So you have <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sin%28-x%29=-sin%28x%29 ALIGN=MIDDLE  ALT=\"sin%28-x%29=-sin%28x%29\"   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=cos%28-x%29=cos%28x%29 ALIGN=MIDDLE  ALT=\"cos%28-x%29=cos%28x%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
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document.write( "Again, you look at your <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-x ALIGN=MIDDLE  ALT=\"-x\"   DISABLED_style= \"max-width:90%; height:auto;\" > as the point ON the Unit Circle. \r<BR>\n" );
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document.write( "Look at given expression now.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sin%28-x%29%2Fcos%28-x%29 ALIGN=MIDDLE  ALT=\"sin%28-x%29%2Fcos%28-x%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >; you know that this will be <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=tan%28-x%29 ALIGN=MIDDLE  ALT=\"tan%28-x%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >.  What else might it be, according to the facts discussed above? </SPAN>\n" );
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