C-12-Q035mediumsingle_mcqBy the cancellation law, if u⃗+v⃗=u⃗+w⃗\vec{u}+\vec{v}=\vec{u}+\vec{w}u+v=u+w, thenav⃗=−w⃗\vec{v}=-\vec{w}v=−wbv⃗=w⃗\vec{v}=\vec{w}v=wcv⃗=0⃗\vec{v}=\vec{0}v=0du⃗=0⃗\vec{u}=\vec{0}u=0