Question

Which quadrant is `(-3,2pi/3)` in?

Answer 1

This point lies in the second quadrant

Explanation:

The rule can be written as:

In the first quadrant both cootdinates are positive,
In the second `x` is negative, `y` - positive,
In the third: both `x` and `y` are negative
In the fourth: `x` is positive, `y` negative