Tangent equation of a point m (4, - 3) over circle x square + y square = 25 | Math enthusiast | Mathematical art

Tangent equation of a point m (4, - 3) over circle x square + y square = 25

Remember a conclusion: the tangent equation of the circle passing through the circle (x-a) &# 178; + (y-b) &# 178; = R & # 178; the circle of the previous point (m, n) is (M-A) (x-a) + (N-B) (X-B) = R & # 178;
So the answer: 4x-3y = 25
That is 4x-3y-25 = 0

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