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Hi, if in a previous video we learnt it using dot product, do we need to learn this method too is is it simply an alternate method? (will an exam ever require you to use one method and not the other?) p.s thanks for the videos, they are fenomenal
hello, i dont understand why when u take the length of the cross product between the direction vector and ap you get mod ap mod direction vector sin(angle). Im struggling to see the link in this situation.
Hi Daisy - thank you for your question. Is it an issue with where this formula comes from? I introduce and derive this in the first few videos of this part of the playlist: sites.google.com/view/tlmaths/home/a-level-further-maths/pure/f-further-vectors/f6-the-vector-product
