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Michael_Light
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Homework Statement
A moving point P is such that the length of the tangent from P to the circle x2+y2=16 is equal to the distance of P from point (8,8). Show that the locus of P is the straight line x+y=9.
Homework Equations
The Attempt at a Solution
I sketched a graph for this, but it doesn't seems to help me a lot in solving this question. Can anyone give me some hints? Thanks...