The centre of a circle is the point with coordinates (-2, 7)
The point A with coordinates (6, 10) lies on the circle.
Find an equation of the tangent to the circle at A.
Give your answer in the form ax+by+c=0 where a, b and c are integers

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The centre of a circle is the point with coordinates 2 7 The point A with coordinates 6 10 lies on the circle Find an equation of the tangent to the circle at class=


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