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Distance between the lines 5x+3y-7=0\ a ...

Distance between the lines `5x+3y-7=0\ a n d\ 15 x+9y+14=0` is `(35)/(sqrt(34))` b. `1/(3sqrt(34))` c. `(35)/(3sqrt(34))` d. `35//2sqrt(34)`

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The given lines can be written as
`5 x+3 y-7=0 `
`5 x+3 y+\frac{14}{3}=0`
Let `d` be the distance between the lines` 5 x+3 y-7=0` and `15 x+9 y+14=0` ...
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