微分方程[img=74x46]1803c785ce81c77.png[/img]满足初始条件[img=68x29]1803c785d6c5983.png[/img],[img=72x29]1803c785dfedb6d.png[/img]的特解为( ).
A: [img=154x29]1803c785e906566.png[/img]
B: [img=154x29]1803c785f12e6ca.png[/img]
C: [img=90x26]1803c785f9bdbfa.png[/img]
D: [img=138x29]1803c78602589d2.png[/img]
A: [img=154x29]1803c785e906566.png[/img]
B: [img=154x29]1803c785f12e6ca.png[/img]
C: [img=90x26]1803c785f9bdbfa.png[/img]
D: [img=138x29]1803c78602589d2.png[/img]
举一反三
- 微分方程[img=74x46]1803217fd3be44a.png[/img]满足初始条件[img=68x29]1803217fdc0936f.png[/img],[img=72x29]1803217fe3b9012.png[/img]的特解为( ). A: [img=154x29]1803217fed06841.png[/img] B: [img=154x29]1803217ff575581.png[/img] C: [img=90x26]1803217ffe14c80.png[/img] D: [img=138x29]180321800650654.png[/img]
- 微分方程[img=74x46]1803d7bb0c547f0.png[/img]满足初始条件[img=68x29]1803d7bb14f36d0.png[/img],[img=72x29]1803d7bb1dd95e9.png[/img]的特解为( ). A: [img=154x29]1803d7bb26e5064.png[/img] B: [img=154x29]1803d7bb2f8fca6.png[/img] C: [img=90x26]1803d7bb38dd23c.png[/img] D: [img=138x29]1803d7bb40b0ea7.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的分布律为P(X=i)=i/6,i=1,2,3,记Y=max(X,2),则Y的分布函数F(x)=( ). A: [img=134x97]18032ce5f620d8f.png[/img] B: [img=134x97]18032ce5ffc4209.png[/img] C: [img=134x97]18032ce60b3653b.png[/img] D: [img=134x97]18032ce61742a1c.png[/img] E: [img=106x51]18032ce62052d87.png[/img]
- 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)