根轨迹渐近线与实轴的交点公式为( )
A: [img=148x49]18036000ade3969.png[/img]
B: [img=148x49]18036000b700ebf.png[/img]
C: [img=148x49]18036000c17240b.png[/img]
D: [img=148x49]18036000cc599bf.png[/img]
A: [img=148x49]18036000ade3969.png[/img]
B: [img=148x49]18036000b700ebf.png[/img]
C: [img=148x49]18036000c17240b.png[/img]
D: [img=148x49]18036000cc599bf.png[/img]
D
举一反三
- 根轨迹渐近线与实轴的交点公式为( ) A: [img=148x49]18032bba5cb5d86.png[/img] B: [img=148x49]18032bba6a271c5.png[/img] C: [img=148x49]18032bba74d2ef5.png[/img] D: [img=148x49]18032bba7f55eba.png[/img]
- 根轨迹渐近线与实轴的交点公式为( ) A: [img=148x49]18038f4532569b1.png[/img] B: [img=148x49]18038f453a89aaf.png[/img] C: [img=148x49]18038f454696344.png[/img] D: [img=148x49]18038f45515da9a.png[/img]
- 根轨迹渐近线与实轴的交点公式为( ) A: [img=148x49]1803e15780b5d3d.png[/img] B: [img=148x49]1803e15789f5ca8.png[/img] C: [img=148x49]1803e1579625af7.png[/img] D: [img=148x49]1803e157a1862d3.png[/img]
- 根轨迹渐近线与实轴的交点公式为( ) A: [img=148x49]1802d8c7dbb5595.png[/img] B: [img=148x49]1802d8c7e40cc1f.png[/img] C: [img=148x49]1802d8c7edb5ef1.png[/img] D: [img=148x49]1802d8c7f927968.png[/img]
- 设[img=15x17]1803028698e6a42.png[/img]为函数[img=70x25]18030286a09460b.png[/img]的单零点,则有[img=148x49]18030286a9acc20.png[/img].
内容
- 0
设[img=15x17]180383043adbcf1.png[/img]为函数[img=70x25]180383044380914.png[/img]的单零点,则有[img=148x49]180383044e4edc5.png[/img].
- 1
设[img=15x17]18031c27d44bb34.png[/img]为函数[img=70x25]18031c27dd5b4f9.png[/img]的单零点,则有[img=148x49]18031c27e82a1af.png[/img].
- 2
设[img=15x17]180302854e45304.png[/img]为函数[img=70x25]1803028556a97f2.png[/img]的单零点,则有[img=148x49]18030285606be02.png[/img].
- 3
设[img=15x17]18036d4b582bb32.png[/img]为函数[img=70x25]18036d4b60eddfe.png[/img]的单零点,则有[img=148x49]18036d4b6c15a3a.png[/img].
- 4
设X, Y为两个随机变量,Var(X)=20, Var(Y)=80,[img=135x49]1803b3b774e9a0f.png[/img],则Var(X+Y)= A: 148 B: 132 C: 126 D: 110