Mains ((exclusive)): Maths Cengage Jee

He paused and smiled. "And remember: from an external point, always check for the vertical tangent."

He stared for an hour. Then, he re-read the theory in Cengage, not the solved problems. Buried in a small, often-ignored "Note" box was a line: "For a parabola y² = 4ax, from an external point, you may have 0, 1, or 2 real tangents. Always check the discriminant method. Never rely solely on the slope form; it fails for vertical lines." maths cengage jee mains

Find the number of distinct real tangents that can be drawn from the point (0, -2) to the curve y² = 4x. He paused and smiled

He marked the answer in 90 seconds. It felt like breathing. he re-read the theory in Cengage