举一反三
- 计算下列矩阵的 [tex=0.571x1.0]rFc/sfAAuCOtzhevhoREeA==[/tex] 次幂, 其中 [tex=0.571x1.0]rFc/sfAAuCOtzhevhoREeA==[/tex] 为正整数:[tex=8.286x3.5]QN0fTQbn6M33pU3gx/S2ssRzVqpWUEMlPB1F8em9pxPHPIIzaitaqaXj3OkAP2YhwLgtNTq7mVpRVmzCUDjgMxeK0fRBchQXdLQiPBE6zvU4+B34aF8ZRVS24QkM3V+Y[/tex]
- 证明一个 [tex=0.571x1.0]rFc/sfAAuCOtzhevhoREeA==[/tex] 一循环置换的阶是 [tex=0.571x1.0]rFc/sfAAuCOtzhevhoREeA==[/tex].
- 设矩阵[tex=6.214x2.786]3BT1BgBZQ5uJXxD5dg+w23rrcqKx27L2L0paZLVx73WXeIIWWUv0DsXtkZVz+pR/niymUxW6MuO9YSZQQGhJXg==[/tex],求[tex=1.214x1.214]954uF65LINdiWcjcrFsUZg==[/tex]([tex=0.571x1.0]rFc/sfAAuCOtzhevhoREeA==[/tex]为正整数)。
- 设 [tex=0.571x1.0]rFc/sfAAuCOtzhevhoREeA==[/tex] 为正整数,证明:[tex=7.286x2.714]WdYFOXfG5nnGW/WgiEfXS7KSJGNH9TOu8OctQH+TBUAmN+2wRfhYp9VdsOm9mviu[/tex].
- 假设[tex=0.786x1.0]b4HkKtHXeHofHX/gJc8Agg==[/tex]是[tex=2.429x1.071]fYRl1cpBZV0k8ULAvI7FIg==[/tex]矩阵,试证:对任意整数[tex=0.571x1.0]rFc/sfAAuCOtzhevhoREeA==[/tex],都有[tex=7.714x1.5]wiQyS+D4jxoqMG/+eBuXLQOMSIjzFckfsGPR4aGujdk=[/tex].(当[tex=0.571x1.0]rFc/sfAAuCOtzhevhoREeA==[/tex]是负整数时,规定[tex=10.857x1.786]wiQyS+D4jxoqMG/+eBuXLcPLSSGKOnNKFNz4ahU1kLHIxNIgDCUTNuDb3G2FmBvQLnGxwWgC3ZTOjfpAYEo3HQ==[/tex]).
内容
- 0
从 [tex=2.286x1.0]Tv9J6hl5OfwCno6jJv7xtw==[/tex] 的整数中取一个数,若取到整数 [tex=0.571x1.0]rFc/sfAAuCOtzhevhoREeA==[/tex] 的概率与 [tex=0.571x1.0]rFc/sfAAuCOtzhevhoREeA==[/tex] 成正比,求取到偶数的概率.
- 1
设[tex=3.857x1.0]ooePFz0xjtusf6vpqQWa8A==[/tex], 证明[tex=6.071x1.5]jSQkp3AY1dfhljvrYqoI9+20CYhQPrsPY6WJKdiMWVU=[/tex] 其中 [tex=0.571x1.0]rFc/sfAAuCOtzhevhoREeA==[/tex]为非负整数。
- 2
[tex=0.571x1.0]FGGpnaR8m8C48rN8O0c7aw==[/tex]是不等于 2 和 5 的质数,[tex=0.571x1.0]rFc/sfAAuCOtzhevhoREeA==[/tex] 是自然数,证明:[tex=5.143x2.643]9ZG142R87UZpWk+DznzbSQal4BSvAr69lHZKETg6dhBcGaNQr9t99v+4iW7u7hVUeO+W/nUuchAm9kbqae1S7A==[/tex]
- 3
当 [tex=0.571x1.0]rFc/sfAAuCOtzhevhoREeA==[/tex] 为 ( ) 时, 矩阵 [tex=8.429x3.929]QN0fTQbn6M33pU3gx/S2srrO+uPYR1FjXG+OULT3PZ0SZZv0cSQupnZyQHcg8Bq3hHsRRoJ35sZ/ccGFpHG0e8Wn0r2X4CmeHP5XlhmRWGEElGmh4cHBsTAfC35uP2P5[/tex] 为正定阵. 未知类型:{'options': ['[tex=2.357x1.071]iILyBi8jdCgmaZqoi7cqWw==[/tex]', '[tex=2.786x1.286]Ngz0glv+VFVna1g4OsuYaQ==[/tex]', '[tex=2.357x1.071]upVaYJbqmrJHFYrKAoUxOw==[/tex]', '[tex=0.571x1.0]rFc/sfAAuCOtzhevhoREeA==[/tex] 不存在'], 'type': 102}
- 4
当[tex=0.571x1.0]rFc/sfAAuCOtzhevhoREeA==[/tex]为何值时,反常积分[tex=5.857x3.429]PJkWCDHq0HBl1uIZQZIQaCJeYEBINEa3r1jVRLOCV3RAYxRTzznIBmThvoc5BKDWEufXbmYTxx3twNmSd5TmhQ==[/tex]收敛? 当[tex=0.571x1.0]rFc/sfAAuCOtzhevhoREeA==[/tex]为何值时,这反常积分发散?当[tex=0.571x1.0]rFc/sfAAuCOtzhevhoREeA==[/tex]为何值时,这反常积分取得最小值?