The locus of feet of perpendicular drawn from origin to the straight lines passing through (2, 1) is
A)
x2 + y2 - 5y = 0
B)
x2 + y2 - 2x - y = 0
C)
2x + y - 5 = 0
D)
(x - 2)(y - 1) = 0
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A straight line is passing through the Point (2,1).
Locus of feet of perpendicular drawn from origin to the line.
y=mx+c
1=mx+c
In the figure, AP and OP are perpendicular ,
☆So m1.m2 =-1
=>k/h × (k-1 /h-2) = -1
=>k (k-1) = -h (h-z)
Hence,
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