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Question

3xy=2 and 6x2y=2 are lines.

A
coincident
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B
parallel
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C
intersecting
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Solution

The correct option is B parallel
Write the two equations in the general form:
a1x+b1y+c1=0 and
a2x+b2y+c2=0,
For two lines to be parallel,
a1a2=b1b2c1c2
For 3xy=2;6x2y=2,a1a2=36=12b1b2=12=12c1c2=22=1
Hence a1a2=b1b2c1c2.

Hence, they are parallel.

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