Question

Find the area of the triangle the coordinates of whose angular points are respectively a cos phi 1 , b sin phi 1, a cos phi 2 , b sin phi 2 and a cos phi 3 ,b sin phi 3 .​

Answer 1

Answer:

Find the area of the triangle the coordinates of whose angular points are respectively a cos phi 1 , b sin phi 1, a cos phi 2 , b sin phi 2 and a cos phi 3 ,b sin phi 3 .