Question

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

Answer 1

Hint is given below

Explanation:

HINT:

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

`\vec{CD}`

`=(-8-7)\hati+(-1-4)\hat j`

`=-15\hati-5\hatj`