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8-73.

Two tangent lines are drawn on the circle x2 + y2 = 25, one at the point (4, 3) and the other at the point (−3, 4). What is the point of intersection for the two tangent lines? Homework Help ✎

Find the equations of the tangents by using the point-slope form.
The slopes of the tangents are the reciprocals of the slopes of the corresponding radii multiplied by −1.

Set the two equations equal to each other and solve for the coordinates of the intersection.

(1,7)

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