If \[{{z}_{1}}=1-i\] and \[{{z}_{2}}=-2+4i\], then \[\operatorname{Im}\left( \frac{{{z}_{1}}{{z}_{2}}}{{{z}_{1}}} \right)=\]

If \[{{z}_{1}}=1-i\] and \[{{z}_{2}}=-2+4i\], then \[\operatorname

1.	If \[{{z}_{1}}=1-i\] and \[{{z}_{2}}=-2+4i\], then \[\operatorname{Im}\left( \frac{{{z}_{1}}{{z}_{2}}}{{{z}_{1}}} \right)=\]
A.	1
B.	2
C.	3
D.	4
Answer» E.

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If \[{{z}_{1}}=1-i\] and \[{{z}_{2}}=-2+4i\], then \[\operatorname{Im}\left( \frac{{{z}_{1}}{{z}_{2}}}{{{z}_{1}}} \right)=\]

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