- 5
-
求定积分
.
- 9
-
求极限
- 13
-
不定积分
- A.∣A+B∣=∣A∣+∣B∣
- B.AB=BA
- C.∣AB∣=∣BA∣
- D.(A+B)-1=A-1+B-1
- A.0
- B.8
- C.<img src="//img1.yqda.net/question-name/9f/42994955f6b00e03a7b2193b7188fc.png" width="65" height="36"/>
- D.<img src="//img1.yqda.net/question-name/01/28427211976345d5c8bd0076b80ef4.png" width="77" height="39"/>
- A.f(x)=1-x<sup>2</sup>
- B.f(x)=∣x∣
- C.f(x)=<img src="//img1.yqda.net/question-name/17/4c1fef8e4e2345a52d2d53b3e64115.png" width="18" height="47"/>
- D.f(x)=x<sup>2</sup>-2x-1
- 23
-
下列函数中,求导正确的是
- A.<img src="//img1.yqda.net/question-name/1a/eec1ea5a2629504cf00fe7f49732ca.png" width="148" height="41"/>
- B.<img src="//img1.yqda.net/question-name/53/ab4ddae09afcb2a6164d54ca2a1c4a.png" width="151" height="47"/>
- C.<img src="//img1.yqda.net/question-name/7b/924e3a9ba7b0567b12ff65c9b2717d.png" width="136" height="42"/>
- D.(e<sup>-x</sup>)′=-e<sup>-x</sup>
- A.xe<sup>x</sup>-e<sup>x</sup>+c
- B.xe<sup>x</sup>-2e<sup>x</sup>+c
- C.xe<sup>x</sup>+e<sup>x</sup>+c
- D.xe<sup>x</sup>+c
- A.3
- B.2
- C.1
- D.<img src="//img1.yqda.net/question-name/c2/cec6f3f1cb44c2e21c0b2526214676.png" width="15" height="54"/>
- A.<img src="//img1.yqda.net/question-name/c1/b716fd984ead3b3e4c8511c262ef45.png" width="105" height="41"/>
- B.<img src="//img1.yqda.net/question-name/f0/35d5c3ffa87ebb79aaf2fc2b3794df.png" width="99" height="45"/>
- C.<img src="//img1.yqda.net/question-name/61/07d90657c5aad3ae7829674ac2055a.png" width="92" height="39"/>
- D.<img src="//img1.yqda.net/question-name/34/32ef34a809ebd1303a7d441b598412.png" width="93" height="31"/>
- A.通过z轴的平面
- B.垂直于z轴的直线
- C.垂直于z轴的平面
- D.通过原点的直线
- A.z轴上
- B.yoz面上
- C.xoz面上
- D.xoy面上