The matrix \(R_{\widehat{ก}}(θ)\) represents a rotation by an angle θ about the axis n̂. The value of θ and n̂ corresponding to the matrix \(\left(\begin{array}{ccc} -1 & 0 & 0 \\ 0 & -\frac{1}{3} & \frac{2 \sqrt{2}}{3} \\ 0 & \frac{2 \sqrt{2}}{3} & \frac{1}{3} \end{array}\right)\), respectively, are
1
\(\pi / 2 \text { and }\left(0,-\sqrt{\frac{2}{3}}, \frac{1}{\sqrt{3}}\right)\)
2
\(\pi / 2 \text { and }\left(0, \frac{1}{\sqrt{3}}, \sqrt{\frac{2}{3}}\right)\)
3
\(\pi \text { and }\left(0,-\sqrt{\frac{2}{3}}, \frac{1}{\sqrt{3}}\right)\)
4
\(\pi \text { and }\left(0, \frac{1}{\sqrt{3}}, \sqrt{\frac{2}{3}}\right)\)