What is the equation for the tangent line of a circle with the point on the circle (-1, 2). center of circle (2, -1). i just cant remember the formula. thanks.(worried)

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- May 23rd 2009, 12:11 PMgabbyCalculus
What is the equation for the tangent line of a circle with the point on the circle (-1, 2). center of circle (2, -1). i just cant remember the formula. thanks.(worried)

- May 23rd 2009, 01:03 PMskeeter