Normal form of the line x-y+sqrt2=0 is...

Normal form of the line `x-y+sqrt2=0` is

A

`xcos""pi/4+ysin""pi/4=1`

B

`xcos""(3pi)/4+ysin""(3pi)/4=1`

C

`xcos""(5pi)/4+ysin""(5pi)/4=1`

D

`xcos""(7pi)/4+ysin""(7pi)/4=1`

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The correct Answer is:

B

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