A circle C1 is drawn having any point P on x-axis as its centre of circle C : x + y = 1 . A common tangent to C1 and C intersects the circle at Q and R respectively . Then Q(x,y) always satisfies x2 = p, then the value of p
A circle C1 is drawn having any point P on x-axis as its centre of circle C : x + y = 1 . A common tangent to C1 and C intersects the circle at Q and R respectively . Then Q(x,y) always satisfies x2 = p, then the value of p