document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=864513>Question 864513</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I have a major question that I am stumped on.  I have been given a composition function, and I need to figure out what two functions combine to make it.\r<BR>\n" );
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document.write( "h(x) = x cos(x/2)\r<BR>\n" );
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document.write( "What two functions make up f(x) and g(x)?\r<BR>\n" );
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document.write( "Then I will go on to graph the f(x) and g(x), but I know how to do that.  I just can't figure out which two functions combine to make the h(x) above.\r<BR>\n" );
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document.write( "Thanks. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #521046 by </B><A HREF=/tutors/aboutme.mpl?userid=rothauserc><B>rothauserc(4718)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rothauserc><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=rothauserc><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=521046\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> h(x) = x cos(x/2)<BR>\n" );
document.write( "assume h(x) = f(g(x))<BR>\n" );
document.write( "g(x) = x^2/2<BR>\n" );
document.write( "f(x) = cos(x^2/2) = x cos (x/2)<BR>\n" );
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