(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

It asks: VectorAhas magnitude 2 and vectorBhas magnitude 3 with an angle between them equalling 0, 90 or 180. If the magnitude ofAXB= 6, what angle/s must be betweenAandB?

3. The attempt at a solution

Knowing that the scalar product of the two vectors can also be considered a magnitude, I went with cos(0) or cos(180). But the answer is sin(90). I understand that that's what it would be if the question is asking for a vector product, but it didn't specify. I see how their answer is also right.

Am I misunderstanding something here? Or is it just known that the magnitude of the product of two vectors is the magnitude of the vector product and not of the scalar product?

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# Homework Help: Is this question fair?

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