Plane through a point whose normal has given direction angles

1. A.
   $\sqrt{2}x+y+z=0$
2. B.
   $x+\sqrt{2}y+z=1$
3. C.
   $-\sqrt{2}x+y+2z=5$
4. D.
   $x+y+\sqrt{2}z=1$

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1. A.
   $x+y+z-3=0$
2. B.
   $x+y+z-2=0$
3. C.
   $x+y-z-2=0$
4. D.
   $x-y+z-3=0$

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