# How would you find a unit vector perpendicular to plane ABC where points are A(3,-1,2), B(1,-1,-3) and C(4,-3,1)?

##### 1 Answer

#### Answer:

The desired unit vector is

#### Explanation:

We know that, given two vectors, say **Vector**

or **Outer Product** , denoted by

perpendicular to the plane containing them.

The given pts.

plane

Accordingly, the vectors

Hence,

Finally, the reqd. unit vector will be

We have,

Finally, the desired unit vector is

Enjoy Maths.!