document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1067794>Question 1067794</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Complete the identity.  A = Alpha.  B = Beta<BR>\n" );
document.write( "Sin(A+B)cosB - cos(A+ B)sinB = sinAcos^2B+ sinAsin^2 B\r<BR>\n" );
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document.write( "Please show me step by step on how to get them to look the same. Thanks.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #682925 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=682925\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> sin (a+b)=sin a cos b+ cos a*sin b==multiply by cos b====get sin a*cos b^2+cos a sin b cos b.<BR>\n" );
document.write( "cos(a+b)=cos a cos b-sin a* sin b====multiply by sin b and change signs==-cos a cos b sin b+sin a sin^2 b<BR>\n" );
document.write( "There are four terms and two cancel each other<BR>\n" );
document.write( "sin a cos b^2+ sin a sin ^2 b. </SPAN>\n" );
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