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The distance of a point (x1, y1) from tw...

The distance of a point `(x_1, y_1)` from two straight lines which pass through the origin of coordinates is `pdot` Find the combined equation of these straight lines.

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The correct Answer is:
y^2−[2x1 y 1 / ( x 2 1 − p 2 ) ] x y + [ ( y 2 1 − p 2 ) / ( x 2 1 − p 2 ) ] x 2 = 0
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