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The equation of the line throgh the poin...

The equation of the line throgh the point `veca` parallel to the plane `vecr.vecn=q and ` perpendicular to the line `vecr=vecb+tvecc` is (A) `vecr=veca+lamda (vecnxxvecc)` (B) `(vecr-veca)xx(vecnxxvecc)=0` (C) `vecr=vecb+lamda(vecnxxvecc)` (D) none of these

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