1.

In a triangle ABC, if |−−→BC|=8,|−−→CA|=7,|−−→AB|=10, then the projection of the vector −−→AB on −−→AC is equal to:

Answer»

In a triangle ABC, if |−−→BC|=8,|−−→CA|=7,|−−→AB|=10, then the projection of the vector −−→AB on −−→AC is equal to:



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