If and , determine the unit vector in the direction from to…

MATHEMATICS · Single correct · CBSE · Mathematics · Vector Algebra · Vector Algebra

Problem

If A(2,−1,4)A(2,-1,4) and B(5,3,−2)B(5,3,-2), determine the unit vector in the direction from AA to BB. (a) (−361,−461,661)\left(-\dfrac{3}{\sqrt{61}}, -\dfrac{4}{\sqrt{61}}, \dfrac{6}{\sqrt{61}}\right) (b) (361,461,661)\left(\dfrac{3}{\sqrt{61}}, \dfrac{4}{\sqrt{61}}, \dfrac{6}{\sqrt{61}}\right) (c) (361,461,−661)\left(\dfrac{3}{\sqrt{61}}, \dfrac{4}{\sqrt{61}}, -\dfrac{6}{\sqrt{61}}\right) (d) (313,413,−613)\left(\dfrac{3}{13}, \dfrac{4}{13}, -\dfrac{6}{13}\right)

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