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Vector product of three vectors is given by `vec(A)xx(vec(B)xxvec(C))=vec(B)(vec(A).vec(C))-vec(C)(vec(A).vec(B))` The plane of vector `vec(A)xx(vec(A)xxvec(B))` lies in the plane ofA. `vec(A)`B. `vec(B)`C. `vec(A)xxvec(B)`D. `vec(A)` & `vec(B)` |
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Answer» Correct Answer - D `vec(A)xx(vec(A)xxvec(B))=vec(A)(vec(A).vec(B))-vec(B)(vec(A).vec(A))rArr` this vector lies in plane of `vec(A)` & `vec(B)` |
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