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January 31, 2015

January 31, 2015

Posted by **annie** on Thursday, May 14, 2009 at 11:49pm.

abs=absolute value

abs(u*v) is less than or equal to abs(u)*abs(v).

Then you divide both sides by abs(u)*abs(v) so that you get cos(theta) is less than or equal to 1.

- math -
**SraJMcGin**, Friday, May 15, 2009 at 2:19am - math -
**Damon**, Friday, May 15, 2009 at 5:25amIf you know that the dot product of vectors u and v is |u| |v| cos theta

then you can surely say that

u dot v </= |u| |v|

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