[试题] 103下 吕学一 应用代数 期末考

楼主: asjh612 (581)   2015-06-27 00:54:24
课程名称︰应用代数
课程性质︰选修
课程教师︰吕学一
开课学院:电机资讯
开课系所︰资讯工程
考试日期(年月日)︰2015/06/26
考试时限(分钟):180
试题 :
总共十一题,每题十分,可按任何顺序答题。只能参考个人事先准备的A4单页大抄。前五
题都是一个可能对也可能不对的叙述。如果你觉得对,请证明它是对的,如果你觉得不对
,请证明它是错的。课堂上证过的定理,或是提过的练习题,都可以直接引用。
第一题
Let S,S',S" be coordinate systems with coincided x-axes, parallel y-axes, and
parallel z-axes. At time 0 with respect to all three clocks, S,S',S" coincide.
Suppose that system S"(respectively, S" and S") moves at a postive velocity v_1
(respectively, v_2 and v_3) measured by S(respectively, S' and S). Thus, the
correspondence of coordinates from S(respectively,S' and S) to S'(respectively,
S" and S") is described by T_(v_1) (respectively,T_(v_2) and T_(v_3). If
T_(v_3) = T_(v_2)T_(v1), then
v_1 + v_2
v_3 =

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