求定积分[img=98x44]17da65381067683.png[/img]; ( )
A: (2*6^(1/2))/25
B: (2*6^(1/2))/30
C: (2*6^(1/2))/15
D: (2*6^(1/2))/20
A: (2*6^(1/2))/25
B: (2*6^(1/2))/30
C: (2*6^(1/2))/15
D: (2*6^(1/2))/20
举一反三
- 求定积分[img=165x50]17da65381a63c9b.png[/img]; ( ) A: (exp(6*pi) - 1)/(5*exp(2*pi)) B: (exp(6*pi) - 1)*(5*exp(2*pi)) C: (exp(6*pi) - 1)/(exp(2*pi)) D: (exp(6*pi) - 1)+(5*exp(2*pi))
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- [1, 2, 3] * 2的结果是_____。 A: [1, 2, 3, 1, 2, 3] B: [1, 2, 3] C: [2, 4, 6, 2, 4, 6] D: [2, 4, 6]
- 定积分[img=120x40]17e0ac7da2e27ad.png[/img]( ) A: 1 B: 1/2 C: 1/3 D: 1/6
- 用某种方法排序,调整序列如下,所选排序方法为( )。7 4 2 8 1 0 6 30 4 2 8 1 7 6 30 1 2 8 4 7 6 30 1 2 8 4 7 6 30 1 2 3 4 7 6 80 1 2 3 4 7 6 80 1 2 3 4 6 7 80 1 2 3 4 6 7 8