# Question #b5ac6

##### 1 Answer

Apr 2, 2017

Normal would be vertical line parallel to y axis, hence its slope would be undefined.

#### Explanation:

this gives

At t=

The slope at t= pi/2 is thus 0, that means the tangent is a horizontal line that is parallel to x axis.

The normal to this horizontal tangent would thus be a vertical line. Its slope would therefor be undefined,