document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=548441>Question 548441</A>: <I><SPAN STYLE=\"word-break: break-all;\"> find the exact value of tan315 using a sum or difference identity. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #357076 by </B><A HREF=/tutors/aboutme.mpl?userid=lwsshak3><B>lwsshak3(11628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lwsshak3><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=357076\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> find the exact value of tan315 using a sum or difference identity.<BR>\n" );
document.write( "**<BR>\n" );
document.write( "tan(315)=tan(360-45)=(tan 360-tan 45)/(1+tan 360*tan 45)<BR>\n" );
document.write( "tan 360º=0<BR>\n" );
document.write( "tan 45º=1<BR>\n" );
document.write( "(tan 360-tan 45)/(1+tan 360*tan 45)<BR>\n" );
document.write( "(0-1)/(1+0*1)=-1/1=-1<BR>\n" );
document.write( "ans:<BR>\n" );
document.write( "tan 315º=-1 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );