分式线性变换[img=78x44]1803026acb0ee11.png[/img]把圆周[img=42x25]1803026ad36ab51.png[/img]映射为( ).
A: [img=46x25]1803026adb2bb29.png[/img]
B: [img=46x25]1803026ae3e9019.png[/img]
C: [img=77x25]1803026aec01c6b.png[/img]
D: [img=77x25]1803026af496440.png[/img]
A: [img=46x25]1803026adb2bb29.png[/img]
B: [img=46x25]1803026ae3e9019.png[/img]
C: [img=77x25]1803026aec01c6b.png[/img]
D: [img=77x25]1803026af496440.png[/img]
举一反三
- 分式线性变换[img=78x44]18036d4dcb99eea.png[/img]把圆周[img=42x25]18036d4dd3c8550.png[/img]映射为( ). A: [img=46x25]18036d4ddc41cbd.png[/img] B: [img=46x25]18036d4de444681.png[/img] C: [img=77x25]18036d4ded3a70a.png[/img] D: [img=77x25]18036d4df5cc783.png[/img]
- 已知随机变量 X 的数学期望 E(X)=11,方差 D(X)=9,则估计 P{2<X<20}的取值范围为() A: [img=28x43]1802fe6065b76e3.png[/img][img=46x25]1802fe606e1c270.png[/img] B: [img=28x43]1802fe6076aba53.png[/img] C: [img=28x43]1802fe607ea0895.png[/img] D: [img=28x43]1802fe6087be9d6.png[/img]
- 分式线性变换[img=78x44]18030270abc44e6.png[/img]把圆周[img=42x25]18030270b4f8a53.png[/img]映射为( ). 未知类型:{'options': ['', '', '', ''], 'type': 102}
- D(X)=25,D(Y)=36,[img=58x17]17e0c5b1a8ccbe4.jpg[/img],则D(X+Y)=(),D(X-Y)=()
- 求不定积分[img=121x54]17da653839aa6ae.png[/img]; ( ) A: log(x^2 + 3*x + 25/4)/4 + (5*atan(x/2 + 3/4))/4 B: log(x^2 + 3*x + 25/4)/4 C: (5*atan(x/2 + 3/4))/4 D: log(x^2 + 3*x + 25/4)/4 - (5*atan(x/2 + 3/4))/4