Technical information
Behaviour being used: Adaptive mode
Minimum fraction: 0
Question summary: Completa la fórmula per calcular el cosinus de l'angle que formen els dos vectors de components (a,b) i (c,d): [begin mathsize 12px style bold cos bold space bold italic alpha bold space bold equals end style] Utilitza a,b,c, i d per la resposta, i * per multiplicar.
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Question state: todo