Q11. Find a unit vector in the direction of the vector A = -i + 2j - 4k.Mathematics — Vectors — Question 11 of 13A. -i/√7 + 2j/√7 - 4k/√7B. -i/√21 + 2j/√21 - 4k/√21C. -i/3 + 2j/3 - 4k/3D. -i/√19 + 2j/√19 - 4k/√19Practice more Mathematics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →