47 A level Mathematics Edexcel Paper 1 2018 Q6 Part a)

This video demonstrates how to solve a specific A-level Maths question involving a circle and a tangent line. You will learn how to use the perpendicular relationship between a tangent and the radius to find the gradient of the line connecting the center of the circle to the point of tangency. We then use this gradient and the coordinates of the circle's center to determine the equation of that line. Finally, we show how to manipulate the equation into the required format. Visit AxiomTutoring.com and subscribe to @AxiomTutoringCourses for more math tutorials.