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Question

The image of the pair of lines represented by 3x2+4xy+5y2=0 by the line mirror x=0 is

A
3x24xy+5y2=0
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B
3x24xy5y2=0
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C
5x24xy3y2=0
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D
none of these
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Solution

The correct option is A 3x24xy+5y2=0
Replacing x by x, the image of the pair of lines 3x2+4xy+5y2=0 is
3x2+4y(x)+5y2=03x24xy+5y2=0

240941_258477_ans_d09bada4795549c9ae0c1ad58baf8657.png

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