我
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- 7
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求不定积分
- 8
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- 9
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- 11
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的基础解系所含解向量的个数为- 15
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- 17
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- 18
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- A.A<sup>-1</sup>B<sup>-1</sup>C<sup>-1</sup>
- B.C<sup>-1</sup>B<sup>-1</sup>A<sup>-1</sup>
- C.C<sup>-1</sup>A<sup>-1</sup>B<sup>-1</sup>
- D.A<sup>-1</sup>C<sup>-1</sup>B<sup>-1</sup>
- 20
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- A.cos(2x)
- B.2cos(2x)
- C.sin(2x)
- D.2sin(2x)
- 21
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- A.1
- B.<img src="//img1.yqda.net/question-name/14/f63367e7688d0c1e95324ed6ee23d2.png" width="9" height="42"/>
- C.2
- D.<img src="//img1.yqda.net/question-name/49/c9e58f8770dcdea7761efffe3c596e.png" width="17" height="45"/>
- A.<img src="//img1.yqda.net/question-name/c6/c1f8a9ccc48bc86820ad1e4bf3f198.png" width="53" height="49"/>
- B.<img src="//img1.yqda.net/question-name/c5/9efca64147ee53e96d11582c0256a3.png" width="49" height="44"/>
- C.<img src="//img1.yqda.net/question-name/82/ad47234c245e2eb5f2cb8407eb76b1.png" width="59" height="47"/>
- D.<img src="//img1.yqda.net/question-name/c2/de3c60b391a32b1b5c92fac48e4375.png" width="52" height="43"/>
- A.(0，2)
- B.(-∞，0)
- C.(4，+∞)
- D.(2，4)
- A.-tanxdx
- B.tanxdx
- C.-cotxdx
- D.cotxdx
- 25
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- A.<img src="//img1.yqda.net/question-name/a9/51a90905825297e1f83d4abdb68548.png" width="27" height="47"/>
- B.<img src="//img1.yqda.net/question-name/ea/e3218690af1bfc22a05bdc676a4a75.png" width="17" height="40"/>
- C.-2
- D.2
- A.较高阶的无穷小
- B.较低阶的无穷小
- C.等价无穷小
- D.同阶无穷小
- 27
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- A.∞
- B.<img src="//img1.yqda.net/question-name/e0/7002f4385a26779350f53ffb137e67.png" width="10" height="42"/>
- C.<img src="//img1.yqda.net/question-name/84/bc59e9515d4e51351c15a0a75c4c21.png" width="12" height="38"/>
- D.<img src="//img1.yqda.net/question-name/46/6b7484a06f3d786d0ff6388cad0b63.png" width="13" height="46"/>
- A.y=y<sub>0</sub>
- B.x=x<sub>0</sub>
- C.z=z<sub>0</sub>
- D.x+z=x<sub>0</sub>+z<sub>0</sub>
- 29
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- A.<img src="//img1.yqda.net/question-name/3e/7bd49a02a340cced4432ae468705f5.png" width="49" height="29"/>
- B.<img src="//img1.yqda.net/question-name/77/311bd2753caa79e81844e406333df6.png" width="87" height="30"/>
- C.<img src="//img1.yqda.net/question-name/a8/10ac2035811c35b4e5b8f148a4617b.png" width="80" height="28"/>
- D.<img src="//img1.yqda.net/question-name/35/d4a3a14d7b0d734b0f6cc92234100a.png" width="94" height="29"/>
- A.Ⅱ
- B.Ⅲ
- C.Ⅳ
- D.Ⅷ
