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viniterranova
given the vectors u and v such that abs (u) = 3 and abs (v) = 5, determine the scalar product of (u-v)
the scalar product of what?
Sorry this is the question taken from a book here in Brazil. The answer is -16.
the question must be asking what is the scalar product (otherwise known as the dot product) of \[ (u-v)\cdot(u+v)\]
Thanks your formulae is right.