Level:
Project ID:
1003107506
Source Problem:
Accepted:
1
Clonable:
1
Easy:
0
Find the complex roots of the following quadratic equation.
\[ 9x^2 + 4\mathrm{i} = 0 \]
\( x_1=-\frac{\sqrt2}3+\frac{\sqrt2}3\mathrm{i}\text{, }\ x_2=\frac{\sqrt2}3-\frac{\sqrt2}3\mathrm{i} \)
\( x_1=\frac23\mathrm{i}\text{, }\ x_2=-\frac23\mathrm{i} \)
\( x_1=\frac{\sqrt2}3+\frac{\sqrt2}3\mathrm{i}\text{, }\ x_2=-\frac{\sqrt2}3-\frac{\sqrt2}3\mathrm{i} \)
\( x_1=\frac23\text{, }\ x_2=-\frac23 \)