State whether the following relations are true or false (1)`vec(AB)=vec(BA)` (2)`vec(AB)=-vec(BA)` (3)`|vec(AB)|=|vec(BA)|` (4)`|vec(AB)|=|-vec(AB)|`
State whether the following relations are true or false
(1)`vec(AB)=vec(BA)`
(2)`vec(AB)=-vec(BA)`
(3)`|vec(AB)|=|vec(BA)|`
(4)`|vec(AB)|=|-vec(AB)|`
(5)`hatj=hatk`
(6)`|hatj|=|hatk|`
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