1. Find Unit vector
`A=(4,3)`

Solution:
Here `vec A=(4,3)`

`|vec A|`

`=sqrt(A_1^2 + A_2^2)`

`=sqrt(4^2 + 3^2)`

`=sqrt(16 + 9)`

`=sqrt(25)`

`=5`


`UNIT(A)`= `(vec A)/(|vec A|)`

`=(((4,3)))/5`

`=(4/5,3/5)`

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2. Find Unit vector
`A=(2,2,1)`

Solution:
Here `vec A=(2,2,1)`

`|vec A|`

`=sqrt(A_1^2 + A_2^2 + A_3^2)`

`=sqrt(2^2 + 2^2 + 1^2)`

`=sqrt(4 + 4 + 1)`

`=sqrt(9)`

`=3`


`UNIT(A)`= `(vec A)/(|vec A|)`

`=(((2,2,1)))/3`

`=(2/3,2/3,1/3)`

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