The combined equations of the pair of li...

The combined equations of the pair of lines through the origin such that one is parallel to x+5y=5 and the other is perpendicular to x-5y+15=0 is a)`x^2+25xy+y^2=0` b)`5x^2-36xy+5y^2=0` c)`x^2-25y^2=0` d)`5x^2+26xy+5y^2=0`

A

`x^2+25xy+y^2=0`

B

`5x^2-36xy+5y^2=0`

C

`x^2-25y^2=0`

D

`5x^2+26xy+5y^2=0`

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The correct Answer is:

D

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