document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=513523>Question 513523</A>: <I><SPAN STYLE=\"word-break: break-all;\"> This one is too hard and I can't get it. . . <BR>\n" );
document.write( "Find the exact value of:<BR>\n" );
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document.write( "cos ( tan^-1 (4/3) + cos^-1 (12/13 ) )<BR>\n" );
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document.write( "Thank You </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #343551 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=343551\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Find the exact value of:<BR>\n" );
document.write( "cos ( tan^-1 (4/3) + cos^-1 (12/13 ) )<BR>\n" );
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document.write( "(tan^-1 (4/3) = angle whose tan=4/3 <BR>\n" );
document.write( "This means you are working with a 3-4-5 right triangle<BR>\n" );
document.write( "cos of this angle, then, =adjacent/hypotenuse=3/5<BR>\n" );
document.write( "..<BR>\n" );
document.write( "cos^-1 (12/13=angle whose cos=12/13 =22.62º<BR>\n" );
document.write( "There is no solution to given problem because you can't add a value 3/5 to angle 22.62º </SPAN>\n" );
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