1.

Three vectors vec(A),vec(B) and vec(C) satisfy the relation vec(A).vec(B)=0 and vec(A).vec(C )=0. The vector vec(A) is parallel to:

Answer»

`vec(B)`
`VECC`
`vec(B).vec(C)`
`vec(B)xxvec(C)`

Solution :`vec(A).vec(B)=0implies vec(A)botvec(B)` Similarly `vec(A)botvec(B)`
`IMPLIES vec(A)` is PARALLEL to `vec(B)xxvec(C)`


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