Question
Tangents are drawn to the circle x^2 + y^2=12 at the points where it is met by the circle x^2 +y^2 - 5x + 3y - 2=0.Find the point of intersection of these tangents.
Joshi sir comment
sovle the two eqs for x and y,
method :
x^2 + y^2=12
on putting this in 2nd eq. we get -5x+3y = -10 so x = (3y+10)/5
so [(3y+10)/5]2 + y2= 12
now get y then x, then get the tangents in the first circle and then intersection point of the tangents.