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The equations ax+by+c=0 and dx+ey+f=0 re...

The equations `ax+by+c=0 and dx+ey+f=0` represent the same st. line if and only if :

A

`a=d, b=e, c=f`

B

`(a)/(d)=(b)/(e )=(c )/(f)`

C

`(a)/(d)=(b)/(e )`

D

`c=f`

Text Solution

Verified by Experts

The correct Answer is:
B
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