1.

If Lines OA,OB are drawn from O(origin) with direction cosines proportional to (1,−2,−1),(3,−2,3). Then the direction cosines of the normal to the plane AOB is

Answer»

If Lines OA,OB are drawn from O(origin) with direction cosines proportional to (1,−2,−1),(3,−2,3). Then the direction cosines of the normal to the plane AOB is



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