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The vector vecaxxvecb+vecbxxvecc+veccxxv...

The vector `vecaxxvecb+vecbxxvecc+veccxxveca` is (A) parallel to plane of `/_\ABC` (B) perpendicular to plane of `/_\ABC` (C) is neighater parallel nor perpendicular to the plane of `/_\ABC` (D) the vector area of `/_\ABC`

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