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Locus of the image of the point (1’,20) ...

Locus of the image of the point (1’,20) in the linethe point (a?,20) in the line mirror x - y + 1 = 0, where a is aparameter , is (x - a)? = b (y - c) where a,b,c el then the valu9) wnere a,b,c el then the value of a + b - 3c =(A) 1(C) 3(D) Oreflected along OR then (B) 2

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