Then \vec{u}+\vec{v} is the vector which results from drawing a vector from the tail of \vec{u} to the tip of \vec{v}. Next consider \vec{u}-\vec{v}. This means \(\vec{u}+\left( -\vec{...Then \vec{u}+\vec{v} is the vector which results from drawing a vector from the tail of \vec{u} to the tip of \vec{v}. Next consider \vec{u}-\vec{v}. This means \vec{u}+\left( -\vec{v} \right) . From the above geometric description of vector addition, -\vec{v} is the vector which has the same length but which points in the opposite direction to \vec{v}.
