Step 1:

The curves are and .

Let the interval be .

Find the intersection points by equating the two curves.

General solution of  is , where n is an integer.

If then

is not considered as .

If then .

and

and

is not considered as .

The intersection points are and .

Step 2:

To find the third point of intersect, replace by  and by .

Consider ..

Find the intersection points by equating the transformed curve with the curve .

General solution of  is , where n is an integer.

If then .

If then .

is not considered as .

The intersection point is .

The intersection points are , and .

Solution:

The intersection points are , and .