given 0A= i + 5j + 3k, OB= mi + j + 5k, OC= -2i -j +6k, how do i find m if A, B, C are collinear? (vector)

Question

anonymous · Answer

possibly can be checked by comparing the slope.. are there other ways to solve this?

anonymous · Answer

i don't know can u give me the example to solve it?

goformit100 · Answer

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ybarrap · Answer

If one vector can be obtained from one of the other vectors by some constant, then it is collinear. For example, the vector xi+yj+zk is collinear with axi+ayi+azk, since the second is different from the first by the factor "a". Note that a can be any real number. If you know how to write this as a matrix, taking the determinant will also tell you if they are collinear. If the determinant is 0 then the vectors are collinear.

anonymous · Answer

okay then thank you i got it. :)