Q19·Section II (Mathematics)·19 of 84The yyy-axis is fixed and the xzxzxz-plane turns through π/4\pi/4π/4The matrix (120−12010 12012)\begin{pmatrix}\tfrac1{\sqrt2}&0&-\tfrac1{\sqrt2}\\0&1&0\ \tfrac1{\sqrt2}&0&\tfrac1{\sqrt2}\end{pmatrix}(21001−210 21021) represents: OptionsArotation by angle π/4\pi/4π/4 around xxx-axisBrotation by angle π/2\pi/2π/2 around yyy-axisCrotation by angle π/4\pi/4π/4 around yyy-axisDrotation by angle π/8\pi/8π/8 around zzz-axisPick an option to check your answer.Show answerShow solution Report a problem with this question← Q18All questionsQ20 →Keyboard: A–D answer · S solution · ←/→ previous/next