交换积分次序：[img=379x58]1803d360c238d35.png[/img]
A: [img=150x54]1803d360cd89047.png[/img]
B: [img=155x54]1803d360d80a6f7.png[/img]
C: [img=152x51]1803d360e471e27.png[/img]
D: [img=150x54]1803d360efb8235.png[/img]
A: [img=150x54]1803d360cd89047.png[/img]
B: [img=155x54]1803d360d80a6f7.png[/img]
C: [img=152x51]1803d360e471e27.png[/img]
D: [img=150x54]1803d360efb8235.png[/img]
举一反三
- 函数[img=126x26]1803b73c10b67e5.png[/img]在x[img=45x14]1803b73c18de92c.png[/img]处的四阶导数为 A: 360[img=11x14]1803b73c214230d.png[/img] B: [img=38x18]1803b73c289e5ca.png[/img] C: 36[img=11x14]1803b73c214230d.png[/img] D: 250[img=11x14]1803b73c214230d.png[/img]
- 函数[img=126x26]180355aad90d0f3.png[/img]在x[img=45x14]180355aae296b73.png[/img]处的四阶导数为 A: 360[img=11x14]180355aaeba4740.png[/img] B: [img=38x18]180355aaf44e55b.png[/img] C: 36[img=11x14]180355aaeba4740.png[/img] D: 250[img=11x14]180355aaeba4740.png[/img]
- 令F(x):x是有理数,G(x):x是实数。将命题“所有的有理数都是实数,但有的有实数不是有理数”符号化为() 未知类型：{'options': ['17e0a83a4157352.jpgx(F(x)∧G(x))∧[img=8x14]17e0a83a35505d4.jpg[/img]x(G(x)[img=14x9]17e0a73094b5dcf.jpg[/img][img=10x11]17e0a839b915354.jpg[/img]F(x))', ' [img=8x14]17e0a83a4157352.jpg[/img]x(F(x)[img=14x9]17e0a73094b5dcf.jpg[/img]G(x))∧[img=8x14]17e0a83a35505d4.jpg[/img]x(G(x)∧[img=10x11]17e0a839b915354.jpg[/img]F(x))', ' [img=8x14]17e0a83a4157352.jpg[/img]x(F(x)∧G(x))∧[img=8x14]17e0a83a35505d4.jpg[/img]x(G(x)∧[img=10x11]17e0a839b915354.jpg[/img]F(x))', ' [img=8x14]17e0a83a4157352.jpg[/img]x(F(x)[img=14x9]17e0a73094b5dcf.jpg[/img]G(x))∧[img=8x14]17e0a83a35505d4.jpg[/img]x(G(x)[img=14x9]17e0a73094b5dcf.jpg[/img][img=10x11]17e0a839b915354.jpg[/img]F(x))'], 'type': 102}
- X~N(1,1), 密度函数为[img=37x25]18038fe689205b5.png[/img], 分布函数为F(x), 则（ ） A: [img=198x25]18038fe690a03ee.png[/img] B: [img=101x25]18038fe69af96aa.png[/img] C: [img=67x25]18038fe6a3b8e5b.png[/img][img=118x25]18038fe6ab93d6f.png[/img] D: F(x)=F(-x)
- 设投掷1颗骰子的点数为X,则( ) 未知类型：{'options': ['E(X)=3.5,D(X)= [img=29x21]17e43c3db9dc21b.png[/img]', ' E(X)=3.5, D(X)= [img=22x41]17e43c3dc2146ee.png[/img]', ' E(X)=3.5,D(X)=3.5', ' E(X)=3.5,D(X)=[img=22x41]17e43c3dcacf7d1.png[/img]'], 'type': 102}