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Let →a,→b and →c be three vectors such that |→a|=√3,|→b|=5,→b.→c=10 and the angle between →b and →c is π3. If →a is perpendicular to vector →b×→c, then |→a×(→b×→c)| is equal to

Answer» Let a,b and c be three vectors such that |a|=3,|b|=5,b.c=10 and the angle between b and c is π3.
If a is perpendicular to vector b×c, then |a×(b×c)| is equal to


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