A circle, C, has equation x 2 + y 2 16x 36 = 0. a.
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A circle, C, has equation x2 + y2 − 16x − 36 = 0.
a. Find the coordinates of the centre of the circle.
b. Find the radius of the circle.
c. Find the coordinates of the points where the circle meets the x-axis.
d. The point P lies on the circle and the line L is a tangent to C at the point P. Given that the line L has gradient 4/3, find the equation of the perpendicular to the line L at the point P.
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Related Book For
Cambridge International AS And A Level Mathematics Pure Mathematics 1 Coursebook
ISBN: 9781108407144
1st Edition
Authors: Sue Pemberton, Julian Gilbey
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