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bar(a)=2hati+hatj-2hatk and bar(b)=hati+hatj. The vector bar( c ) is such that bar(a)*bar( c )=|bar( c )|,|bar( c )-bar(a)|=2sqrt(2) and the angle between bar(a)xx bar(b) and bar( c ) is 30^(@) then |(bar(a)xx bar(b))xx bar( c )| = ………… |
| Answer» Answer :B | |