Answer Happy

Hi how can I convert these matrices to quaternions? thanks
A rotation of radians about the x-axis is defined as 1 0 0 0 cos - sin 0 sin cos R₂ (v) = Similarly, a rotation of radians about the y-axis is defined as 0 sin 0 1 0 0 cos 0 Ry(0) = [3 0 R₂(0) = cos - sin Finally, a rotation of o radians about the z-axis is defined as sin 0 cos 0 0 1 cos sin 0