document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=26171>Question 26171</A>: <I><SPAN STYLE=\"word-break: break-all;\"> if x is a positive real number, show thata x+(4/x)>=4. When does equality hold? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #14316 by </B><A HREF=/tutors/aboutme.mpl?userid=venugopalramana><B>venugopalramana(3286)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=venugopalramana><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.geocities.com/venugopalramana/FREE_MATHS_ASSISTANCE.html valign=middle><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=14316\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> if x is a positive real number, show thata x+(4/x)>=4. When does equality hold?<BR>\n" );
document.write( "LET Y=X+4/X-4<BR>\n" );
document.write( "Y=(X^2+4-4X)/X<BR>\n" );
document.write( "=(X-2)^/X<BR>\n" );
document.write( "N.R. BEING A PERFECT SQUARE IS ALWAYS POSITIVE.X IS GIVEN TO BE POSITIVE.HENCE Y IS POSITIVE.ITS MINIMUM VALUE WOULD BE ZERO WHEN X=2<BR>\n" );
document.write( "THAT IS X+4/X=MINIMUM VALUE OF 4 WHEN X=2 </SPAN>\n" );
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