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If the equation px^(2)-8xy+3y^(2)+14x+2y...

If the equation `px^(2)-8xy+3y^(2)+14x+2y+q=0` represents a pair of perpendicular lines, then

A

`p=-3, q=-8`

B

`p=3, q=-8`

C

`p=-3, q=8`

D

`p=3, q=8`

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A
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