Question: A circle with centre C(4, 2) passes through the point P(7, 2). a) Find the equation of the circle in the form (x

A circle with centre C(4, − 2) passes through the point P(7, 2).

a) Find the equation of the circle in the form (x − a)² + (y − b)² = k.

b) Find the equation of the tangent to the circle at P.

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