Question: A circle with centre C has equation x + y 6x + 2y + 5 = 0. a) Find the coordinates of C and

A circle with centre C has equation x² + y² − 6x + 2y + 5 = 0.

a) Find the coordinates of C and the radius of the circle.

b) A(5, −2) lies on the circle. Find the
equation of the tangent to the circle at A.

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