20. If sum of the perpendicular distances of a variable point P (x

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20. If sum of the perpendicular distances of a variable point P (x, y) from the lines x + y – 5 = 0 and 3x – 2y +7 = 0 is always 10. Show that P must move on a line
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20. If sum of the perpendicular distances of a variable point P (x, y) from the lines x + y – 5 = 0 and 3x – 2y +7 = 0 is always 10. Show that P must move on a line 20. If sum of the perpendicular distances of a variable point P (x [...]
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Tags: 20. If sum of the perpendicular distances of a variable point P (x , y) from the lines x + y – 5 = 0 and 3x – 2y +7 = 0 is always 10. Show that P must move on a line ,