Find the equation of the line whose intercepts on X and Y-axes are a2 and b2 respectively
b2x + a2 b2y = a2
b2x + a2y = a2b2
b2a2x + a2y = b2
bx + ay = ab
bx/a+ay/b=a2+b2 x+y=2ab solve for x and y
The length of the chord intercepted by the circle x2+y2=r2 on the line xa+yb=1