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Help with vectors!
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Hey!
Sorry for the very basic question, but I'm struggling to understand the concepts of this topic of vectors. So for part a) I understand that we need to get the dot product equal to 0 so we can find the perpendicular points, however, how am I supposed to do a dot product of a point with a Line? I'm very confused
For part b) I understand that we need to get the modulus of the vector AQ so that it equals 2? However how would I notate this, would I do all the xyz of A minus ijz?
Thanks!
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