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Question

Find the distance of the point (2,3) form the line 2x3y+9=0 measurement along a line xy+1=0.

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Solution

2x3y+9=0 ……..(i),
xy+1=0 ………(ii)
Multiply equation (ii) by 2 and subtract it from equation (1)
2x3y+9=0
2x2y+2=0
_____________
y+7=0
_____________
y=7,x=6
Point of intersection (6,7)
Distance between (2,3) and (6,7)=(62)2+(73)2
=42 units
Distance of the point (2,3) from the line 2x3y+9=0 measured along line xy+1=0 is 42 units.

1118644_1155109_ans_44bfba9dd74f4b5db05b2a962be582e8.jpg

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