document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=37644>Question 37644</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Need Help with this problem.  Due tonight and don't understand it.<BR>\n" );
document.write( "2)Is (sqrt x)^2   an identity (true for all nonnegative values of x)?<BR>\n" );
document.write( "Answer:  <BR>\n" );
document.write( "Explain your answer in this space.  <BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #23238 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=23238\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Yes, true for all non-negative values of \"x\".<BR>\n" );
document.write( "sqrt(anything) is always non-negative, if it is a Real number.<BR>\n" );
document.write( "What about sqrt(x^2)? Does it equal \"x\"?<BR>\n" );
document.write( "sqrt(-2)^2 = sqrt4 =2<BR>\n" );
document.write( "sqrt(0)^2 = sqrt0 = 0<BR>\n" );
document.write( "sqrt(+2)^2= sqrt4= 2<BR>\n" );
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document.write( "So, sqrt(x^2) is not always \"x\".<BR>\n" );
document.write( "The sqrt (anything) is no-negative, if it is a Real number.<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.\r<BR>\n" );
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