题[tex=2.286x1.143]LPCruqHgKS0qOEkrXeQzXQ==[/tex]图所示电路中电感的初始电流为零,设[tex=7.214x1.429]IYrXXVIj7ifskuisnI2j766yQn87pf2h/9YLsDgtc+3Ig7gtsPHFIVXTM4m0iJN4[/tex],试用卷积积分求[tex=2.214x1.357]8OJTdr7C2K8IuiW34OV7MA==[/tex]。[img=194x167]179a80746449209.png[/img]
举一反三
- 在图所示电路中[tex=8.429x1.214]eS5afyANXZKfLEySYlhLxzuvOzs0BKUt1dOQIeaXtj4=[/tex], 若[tex=14.5x3.643]gKCDNUX3yGtD9CbrQj19yWcM1MnOGlBXN57oa4VjVFZs/wE86FonwX+BKugNa9p0H1aJI47oC2KvT3CHWQVkFhs/v3cNeeTzQiY+vSfdLJTZw4DW4txT9+2BfGymEkNDeMTdWGJzIvng6qwEtjOd6w==[/tex],t单位为秒。(1) 求[tex=2.214x1.357]8OJTdr7C2K8IuiW34OV7MA==[/tex]。(2) 求电源电压[tex=2.143x1.357]ayT0u46f8NtznvYtwRv6MQ==[/tex][img=288x157]17aa7a9944a30c3.png[/img]
- 设随机变量(X,Y)的概率分布列为[img=345x154]178ab1c9ce3bc1b.png[/img]求[tex=1.571x1.0]JUrGU6ftUjxQCIr6CyfDwQ==[/tex],[tex=1.357x1.0]yL/7/hhyqgwzAX8jnIq3OQ==[/tex],[tex=4.357x1.357]LN0xwhQHSOeLwBClUlpHQw==[/tex].
- set1 = {x for x in range(10)} print(set1) 以上代码的运行结果为? A: {0, 1, 2, 3, 4, 5, 6, 7, 8, 9} B: {0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10} C: {1, 2, 3, 4, 5, 6, 7, 8, 9} D: {1, 2, 3, 4, 5, 6, 7, 8, 9,10}
- 假设“☆”是一种新的运算,若3☆2=3×4,6☆3=6×7×8,x☆4=840(x>0),那么x等于: A: 2 B: 3 C: 4 D: 5 E: 6 F: 7 G: 8 H: 9
- 题 5.7图所示电路中, t=0 时, 开关 S 合上。已知电初始值为零, 求[tex=2.214x1.357]1AMJFyCvvNeY8zBoMwketg==[/tex]和 [tex=1.5x1.357]4oplQ+uBNX3MZ46HijPjsQ==[/tex] 。[img=258x192]17cfeea6292d9f1.png[/img]