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The perpendicular distance of the line p...

The perpendicular distance of the line `px+qy+r=0` from the point (2,-1) is 4 unit , state which of the following conditions is true ?

A

`q+r-2p=4(p^(2)+q^(2))`

B

`q+r-2p=4sqrt(p+q)`

C

`(q+r-2p)^(2)=4(p^(2)+q^(2))`

D

`(2p-q+r)^(2)=16(p^(2)+q^(2))`

Text Solution

Verified by Experts

The correct Answer is:
D
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