C-12-Q025mediumsingle_mcqu⃗−v⃗=\vec{u}-\vec{v}=u−v=au⃗+v⃗\vec{u}+\vec{v}u+vbu⃗+(−v⃗)\vec{u}+(-\vec{v})u+(−v)c−u⃗+v⃗-\vec{u}+\vec{v}−u+vd−u⃗−v⃗-\vec{u}-\vec{v}−u−v