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C4 vector

Good evening. I would like to ask a question regarding working out the acute angle in vectors :biggrin: . So when working out the a*b. Is it away from the angle or towards the angle? Thank you
Original post by Angelaa
Good evening. I would like to ask a question regarding working out the acute angle in vectors :biggrin: . So when working out the a*b. Is it away from the angle or towards the angle? Thank you


Either both vectors have to be pointing towards the point of the angle, or both vectors have to be pointing away from the angle.

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