Distance between the parallel lines 4x^2...

Distance between the parallel lines `4x^2 +20xy +25y^2+2x+5y -12 = 0`

A

`(3)/(sqrt(29))`

B

`(5)/(sqrt(29))`

C

`(7)/(sqrt(29))`

D

`(9)/(sqrt(29))`

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The correct Answer is:

C

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