JEE Main 202125 Feb, Evening shiftMathematicsMediumCoordinate Geometry478× since 2002
A line is a common tangent to the circle (x 3)² + y² = 9 and the parabola y² = 4x. If the two points of contact (a, b) and (c, d) are distinct and lie in the first quadrant, then 2(a + c) is equal to _________.