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: 13 sty 2009, o 14:18
\(\displaystyle{ z \in C}\)
\(\displaystyle{ z:\left|z+i \right|+ \left|z-1 \right| \le 4}\)
\(\displaystyle{ z:arg \overline z < arg z}\)
\(\displaystyle{ z:\frac{pi}{6} \le arg( \overline z -i) \le \frac{pi}{3}}\)
\(\displaystyle{ z:\frac{pi}{3} \le arg(-z+1) \le \frac{pi}{2}}\)
\(\displaystyle{ z:\left|z+i \right|+ \left|z-1 \right| \le 4}\)
\(\displaystyle{ z:arg \overline z < arg z}\)
\(\displaystyle{ z:\frac{pi}{6} \le arg( \overline z -i) \le \frac{pi}{3}}\)
\(\displaystyle{ z:\frac{pi}{3} \le arg(-z+1) \le \frac{pi}{2}}\)