Question

Prove that tan square theta by tan square theta minus 1 plus cos square theta by sin square theta minus cos square theta equals 1 by sin square theta minus cos square theta

Answer 1

Step-by-step explanation:

Given coordinates of four points in a plane, find if the four points form a square or not.

To check for square, we need to check for following.

a) All fours sides formed by points are the same.

b) The angle between any two sides is 90 degree. (This condition is required as Quadrilateral also has same sides.

c) Check both the diagonals have the same distance