Question

3. If a = (2i -4j +5k) then find the value of so that sa may be a unit vector.

Answer 1

Let P(3,2,6) be point in the space and Q be a point on the line r=(i-j+2k)+const(-3i+j+5k), then find the value of const for which the vector PQ is parallel to the plane x-4y+3z=1.
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