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]
A: [img=154x29]1803217fed06841.png[/img]
B: [img=154x29]1803217ff575581.png[/img]
C: [img=90x26]1803217ffe14c80.png[/img]
D: [img=138x29]180321800650654.png[/img]
举一反三
- 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]
- 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]
- 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}
- 在下列命题中:如果f(x)=[img=28x44]17e0bf9914bb2f1.png[/img],那么[img=27x29]17e0bf97582597b.png[/img]f(x)=0;如果f(x)=[img=28x44]17e0bf992111a1c.png[/img],那么[img=27x29]17e0bf97582597b.png[/img]f(x)=0;如果f(x)=[img=55x44]17e0bf992d8de0a.png[/img],那么[img=29x29]17e0bf9939482bb.png[/img]f(x)不存在;如果f(x)=[img=87x53]17e0bf99450fa82.png[/img],那么[img=27x29]17e0bf97582597b.png[/img]f(x)=0。其中错误命题的个数是( A: 0 B: 1 C: 2 D: 3
- 下列的推理结构中哪个是正确的推理形式()。 未知类型：{'options': ['([img=8x14]17e4385a99bb660.jpg[/img] x)P(x) ∧ ([img=8x14]17e4385a99bb660.jpg[/img]x)Q(x) → ([img=8x14]17e4385a99bb660.jpg[/img]x)(P(x) ∧Q(x))', ' ([img=8x14]17e4385a99bb660.jpg[/img] x)P(x) → ([img=8x14]17e4385a99bb660.jpg[/img]x)(P(x) ∧ Q(x))', ' ([img=8x14]17e4385a99bb660.jpg[/img]x)(P(x) ∨ Q(x)) → ([img=8x14]17e4385a99bb660.jpg[/img]x)P(x) ∨([img=8x14]17e4385a99bb660.jpg[/img]x)Q(x)', ' ([img=8x14]17e4385a99bb660.jpg[/img]x)(P(x)∨ Q(x)) → ([img=8x14]17e4385a99bb660.jpg[/img] x)P(x) ∧ ([img=8x14]17e4385a99bb660.jpg[/img] x)Q(x)'], 'type': 102}