document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=397767>Question 397767</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hai sir, Please help me on this problem\r<BR>\n" );
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document.write( "\"If a line has the direction ratios –17, 11, – 4, then what are its direction cosines? <BR>\n" );
document.write( "a. a)0.7, 0.4, 0.05<BR>\n" );
document.write( "b. b)0.6, 0.3, 0.1<BR>\n" );
document.write( "c. c)0.9, 0.6, 02<BR>\n" );
document.write( "d. d)None of these\" </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #281819 by </B><A HREF=/tutors/aboutme.mpl?userid=robertb><B>robertb(5830)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=robertb><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=robertb><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=281819\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The position vector <-17, 11, -4> or -17i + 11j - 4k has length <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%28%28-17%29%5E2+%2B+11%5E2+%2B+%28-4%29%5E2+%29=+sqrt%28426%29 ALIGN=MIDDLE  ALT=\"sqrt%28%28-17%29%5E2+%2B+11%5E2+%2B+%28-4%29%5E2+%29=+sqrt%28426%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >.  The direction cosines are then<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-17%2F+sqrt%28426%29 ALIGN=MIDDLE  ALT=\"-17%2F+sqrt%28426%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=11%2F+sqrt%28426%29 ALIGN=MIDDLE  ALT=\"11%2F+sqrt%28426%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-4%2F+sqrt%28426%29 ALIGN=MIDDLE  ALT=\"-4%2F+sqrt%28426%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >.<BR>\n" );
document.write( "Incidentally, the answer is d, none of the choices. </SPAN>\n" );
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