一、現代性(modernity)具有何特徵？如何產生？對人類及其社會有何影響和挑戰？試至少舉例一位社會學家的看法加以說明，並提出你的評論。

1. Use the following linear system to verify that the general solution of a consistent linear system Ax=b can be obtained by adding any specific solution of Ax=b to the general solution of Ax=0. x + 2 y − 3z = 3 3 x + 6 y − 9z = 9 −2 x − 4 y +6 z = −6