document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1136323>Question 1136323</A>: <I><SPAN STYLE=\"word-break: break-all;\">  Find the magnitude of the vector 〈1, −4, 2〉. What is the unit vector? </SPAN>\n" );
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document.write( "The magnitude is<br><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%281%5E2%2B4%5E2%2B2%5E2%29+=+sqrt%2821%29 ALIGN=MIDDLE  ALT=\"sqrt%281%5E2%2B4%5E2%2B2%5E2%29+=+sqrt%2821%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><br><BR>\n" );
document.write( "If you mean the unit vector IN THAT DIRECTION, it is<br><BR>\n" );
document.write( "(1/sqrt(21), -4/sqrt(21), 2/sqrt(21)) </SPAN>\n" );
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