二阶电路过渡过程的性质取决于电路元件的参数。当电路发生非振荡过程的过阻尼状态时,满足( )
A: [img=98x73]1803b3d2d5d44fa.png[/img]
B: [img=96x69]1803b3d2ddd439b.png[/img]
C: [img=94x67]1803b3d2e58d272.png[/img]
D: [img=94x63]1803b3d2ecd1a05.png[/img]
A: [img=98x73]1803b3d2d5d44fa.png[/img]
B: [img=96x69]1803b3d2ddd439b.png[/img]
C: [img=94x67]1803b3d2e58d272.png[/img]
D: [img=94x63]1803b3d2ecd1a05.png[/img]
举一反三
- 求函数[img=102x46]17da6537bc771a0.png[/img]的导数; ( ) A: -x/(a^2 - x^2)^(3/2) B: x/(a^2 - x^2)^(3/2) C: (a^2 - x^2)^(3/2)/x D: (a^2 - x^2)^(1/2)
- 已知[img=52x29]18038be96ed0534.png[/img],[img=115x51]18038be97866e95.png[/img],在MATLAB中若想由x生成矩阵A可调用命令 A: A=[x,x.^2,x.^3] B: A=[x,x^2,x^3] C: A=[x;x.^2;x.^3] D: A=[x;x^2;x^3]
- 已知[img=52x29]1802e9891f49f72.png[/img],[img=115x51]1802e989277fcbc.png[/img],在MATLAB中若想由x生成矩阵A可调用命令 A: A=[x,x.^2,x.^3] B: A=[x,x^2,x^3] C: A=[x;x.^2;x.^3] D: A=[x;x^2;x^3]
- 已知[img=52x29]1803bbd8531a1be.png[/img],[img=115x51]1803bbd85b65619.png[/img],在MATLAB中若想由x生成矩阵A可调用命令 A: A=[x,x.^2,x.^3] B: A=[x,x^2,x^3] C: A=[x;x.^2;x.^3] D: A=[x;x^2;x^3]
- 求微分方程 [img=635x61]17da6537085dd29.png[/img] 的特解; ( ) A: (3*sin(5*x))/exp(2*x) B: exp(2*x) C: (3*sin(5*x)) D: (3*cos(5*x))/exp(2*x)