Question

the circle x*2+y*2+2g1x-a2=0 and x*2+y*2+2g2x-a*2=0 cut each other orthogonally. if p1 and p2 are perpendicular from (0,a) and (0,-a) on a common tangent of these circles, then p1p2 is equal to

Answer 1

Answer:

2 3 is the answer by calculating the all