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if the equation 12x^2+7xy-py^2-18x+qy+6=...

if the equation `12x^2+7xy-py^2-18x+qy+6=0` represents two perpendicular lines , then the value of p and q are

A

12,1

B

12,-1

C

`12,(23)/2`

D

`-(23)/2`

Text Solution

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The correct Answer is:
A, C
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