The image of the pair of lines represented by `ax^(2)+2hxy+by^(2)=0`by the line mirror `y=0` is
The image of the pair of lines represented by `ax^(2)+2hxy+by^(2)=0`by the line mirror `y=0` is
A. `ax^(2)-2hxy-by^(2)=0`
B. `bx^(2)-2hxy+ay^(2)=0`
C. `bx^(2)+2hxy+ay^(2)=0`
D. `ax^(2)-2hxy+by^(2)=0`
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Correct Answer - 4
Each point (x,y) has an image in line `y=0 as `(x,-y).
So, replacing y by -y in the given equation , we get the image as `ax^(2)-2hxy+by^(2)=0`.
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