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Angle entre dos vectors

L'angle entre dos vectors es calcula amb:

begin mathsize 14px style bold space bold space bold cos open parentheses stack stack bold v subscript bold 1 with bold rightwards arrow on top bold comma stack bold v subscript bold 2 with bold rightwards arrow on top with bold overbrace on top close parentheses bold equals fraction numerator stack bold v subscript bold 1 with bold rightwards arrow on top bold space bold times stack bold v subscript bold 2 with bold rightwards arrow on top over denominator open vertical bar open vertical bar stack bold v subscript bold 1 with bold rightwards arrow on top close vertical bar close vertical bar bold space bold times bold space open vertical bar open vertical bar stack bold v subscript bold 2 with bold rightwards arrow on top close vertical bar close vertical bar end fraction end style
 
 
 
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