1.

Show that if the position vectors of 3 points are (a) -2i+3j+5k , I+2j+3k and 7i-k (b) i-2j+3k , 2i+3j-4k and -7i+4kthen the points are collinear.

Answer» Show that if the position vectors of 3 points are
(a) -2i+3j+5k , I+2j+3k and 7i-k
(b) i-2j+3k , 2i+3j-4k and -7i+4k
then the points are collinear.


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