Část:
Project ID:
1003102501
Accepted:
1
Clonable:
0
Easy:
0
Určete množinu komplexních kořenů dané rovnice.
\[ 9x^2 + 2 = 0 \]
\( \left\{-\frac{\sqrt2}3\mathrm{i}; \frac{\sqrt2}3\mathrm{i}\right\} \)
\( \left\{-\sqrt{\frac{2}3}\mathrm{i}; \sqrt{\frac23}\mathrm{i}\right\} \)
\( \left\{-\frac23\mathrm{i}; \frac23\mathrm{i}\right\} \)
\( \left\{-\frac29\mathrm{i}; \frac29\mathrm{i}\right\} \)
\( \emptyset \)