Ratio in Which Line Divides Segment Joining 2 Points
The equation ...
Question
The equation to the locus of a point which is always equidistant from the points (1,0) and (0,−2) is:
A
2x+4y+3=0
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B
4x+2y+3=0
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C
2x+4y−3=0
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D
4x+2y−3=0
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Solution
The correct option is A2x+4y+3=0 Let the point which is equidistant from the given points be (x,y) Using the distance formula , we have √(x−1)2+(y−0)2=√(x−0)2+(y+2)2 Squaring both the sides, we get
x2−2x+1+y2=x2+y2+4y+4⇒−2x−3−4y=0⇒2x+4y+3=0 Option A is correct