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How do you write vector CD as the sum of unit vectors for points C (7,4) & D (-8, -1)?

1 Answer

Harish Chandra Rajpoot

Jul 12, 2018

Hint is given below

Explanation:

HINT:

$- - \to C D$ $\vec {CD}$ joining the points $C (7, 4)$ $C(7, 4)$ & $D (- 8, - 1)$ $D(-8, -1)$ is given as follows

$- - \to C D$ $\vec{CD}$

$= (- 8 - 7) ˆ i + (- 1 - 4) ˆ j$ $=(-8-7)\hati+(-1-4)\hat j$

$= - 15 ˆ i - 5 ˆ j$ $=-15\hati-5\hatj$

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