设C是正向圆周[img=69x25]1803b3536d8eb27.png[/img]下列积分中,积分值为零的是[img=82x25]1803b3537645eea.png[/img]
A: [img=85x48]1803b3537e5ec10.png[/img]
B: [img=59x48]1803b35387f5244.png[/img]
C: [img=52x48]1803b3539088f64.png[/img]
D: [img=83x48]1803b35398b4777.png[/img]
A: [img=85x48]1803b3537e5ec10.png[/img]
B: [img=59x48]1803b35387f5244.png[/img]
C: [img=52x48]1803b3539088f64.png[/img]
D: [img=83x48]1803b35398b4777.png[/img]
举一反三
- 设 [img=13x19]1803b3595440323.png[/img] 是正向圆周|[img=52x25]1803b3595c0e252.png[/img]. 下列积分中,积分值为零的是( ). A: [img=85x48]1803b3596442e07.png[/img] B: [img=59x48]1803b3596c9aa00.png[/img] C: [img=54x48]1803b359740b59c.png[/img] D: [img=83x48]1803b3597bf25c7.png[/img]
- 设 [img=13x19]1803b35a89802fd.png[/img] 是正向圆周|[img=52x25]1803b35a91fb923.png[/img]. 下列积分中,积分值为零的是( ). A: [img=85x48]1803b35a9a958fb.png[/img] B: [img=59x48]1803b35aa2f24e2.png[/img] C: [img=54x48]1803b35aabb8fd0.png[/img] D: [img=83x48]1803b35ab3bc777.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}
- 设随机变量X的密度函数f(x)满足f(-x)= f(x),F(x)为X的分布函数,则对任意实数a,下列结论成立的是( ) A: [img=188x49]1803bb15a4e233e.png[/img] B: [img=186x49]1803bb15aeb6ced.png[/img] C: [img=107x25]1803bb15b6bde3a.png[/img] D: [img=147x25]1803bb15bfab702.png[/img]
- 下列函数中为同一个函数的是() 未知类型:{'options': ['f(x)=x,g(x)=[img=25x39]17e43f7e294a229.png[/img]', ' f(x)=x,g(x)=[img=39x24]17e43f7e31cdea3.jpg[/img]', ' f(x)=x,g(x)=[img=35x25]17e43f7e3c419e9.png[/img]', ' f(x)=|x|,g(x)=[img=35x25]17e43f7e3c419e9.png[/img]'], 'type': 102}