The complex numbers \[{{z}_{1}},{{z}_{2}},{{z}_{3}}\] are the vertices of a triangle. Then the complex numbers \[z\] which make the triangle into a parallelogram is

\[{{z}_{2}}+{{z}_{3}}-{{z}_{1}}\]

The complex numbers \[{{z}_{1}},{{z}_{2}},{{z}_{3}}\] are the vertices

1.	The complex numbers \[{{z}_{1}},{{z}_{2}},{{z}_{3}}\] are the vertices of a triangle. Then the complex numbers \[z\] which make the triangle into a parallelogram is
A.	\[{{z}_{1}}+{{z}_{2}}-{{z}_{3}}\]
B.	\[{{z}_{1}}-{{z}_{2}}+{{z}_{3}}\]
C.	\[{{z}_{2}}+{{z}_{3}}-{{z}_{1}}\]
D.	All the above
Answer» E.

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The complex numbers \[{{z}_{1}},{{z}_{2}},{{z}_{3}}\] are the vertices of a triangle. Then the complex numbers \[z\] which make the triangle into a parallelogram is

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