Assertion (A) The equation to the locus of points which are equidistant from the points(−3,2), (0,4) is 6x+4y−3=0 Reason (R) The locus of points which are equidistant to A,B is perpendicular bisector of AB
A
A true, R true and R is correct explanation of A.
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B
A true, R true but R is not correct explanation A.
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C
A true, R false
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D
A false, R true
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Solution
The correct option is AA true, R true and R is correct explanation of A. Let (h,k) be the points which are equidistant from point (−3,2) and (0,4)
Then equation of the locus of points is given by
(h+3)2+(k−2)2=(h−0)2+(k−4)2
⟹h2+6h+9+k2−4k+4=h2+k2−8k+16 ⟹6h+4k−3=0 ∴6x+4y−3=0 This is the perpendicular bisector of the line joining (−3,2) and (0,4)
Hence, both A and R are true and R is correct explanation of A.