Find the equation of the circle the end points of whose diameter are the centre of the circles x2+y2−6x−14y−1=0 and x2+y2−4x+lOy−2=0
The equation of sides rectangle ABCD are given as follows:
Equation of AB: = –2, equation of BC: = 2, equation of CD: = 6, equation of AD: = –1. Find the coordinates of A, B, C, D. Hence find the equation of the diagonal AC.