我
- 3
-
- 4
-
求函数
的极值。
的极值。- 5
-
- 7
-
________.
在x=0处连续，求a。- 10
-
________.
________.- 11
-
________.
________.- 13
-
________.
________.- 14
-
________.
________.- A.0.24
- B.0.36
- C.0.4
- D.0.6
- 18
-
________.
________.- A.<img src="//img1.yqda.net/question-name/e2/b5b34644dc3dd6531ffe92c3a4e190.png" width="18" height="42"/>
- B.<img src="//img1.yqda.net/question-name/30/424ca64568f92ca1d2a145e42f4815.png" width="18" height="42"/>
- C.<img src="//img1.yqda.net/question-name/10/43ba3fcc73bcae17755963f8a772e9.png" width="18" height="42"/>
- D.π
- 21
-
若二元函数
- A.2xy+3+2y
- B.xy+3+2y
- C.2xy+3
- D.xy+3
- A.0
- B.2
- C.2f（-1）
- D.2f（1）
- 23
-
- A.<img src="//img1.yqda.net/question-name/30/afbd32312d4ebfe4261f0dd89ade75.png" width="83" height="42"/>
- B.f（2x）+C
- C.2f（2x）+C
- D.<img src="//img1.yqda.net/question-name/de/370b53c0e6f0581ecc3c13e914c064.png" width="74" height="42"/>
在点（1，3）处的法线方程是- A.5x+y-8=0
- B.5x-y-2=0
- C.x+5y-16=0
- D.x-5y+14=0
- 25
-
- A.ln|2-x|+C
- B.-ln|2-x|+C
- C.<img src="//img1.yqda.net/question-name/67/da1331ee2f4c4a3ad452ee98ac6054.png" width="94" height="44"/>
- D.<img src="//img1.yqda.net/question-name/8f/a3654d80d960058b8976b86ff6512e.png" width="82" height="44"/>
- 26
-
若函数
，则
，则
- A.<img src="//img1.yqda.net/question-name/35/5e6fa21840eacffe4d4e52a32b87ee.png" width="27" height="22"/>
- B.<img src="//img1.yqda.net/question-name/4e/d1089caee24f46643053766a8f01db.png" width="36" height="22"/>
- C.<img src="//img1.yqda.net/question-name/2d/c077d3ac6a9cda99cc5ec50f1153b0.png" width="44" height="22"/>
- D.<img src="//img1.yqda.net/question-name/98/5a62e499c779989ed78ab0d2d8f82a.png" width="18" height="22"/>
- A.（1+sinx）dx
- B.（1- sinx）dx
- C.sinxdx
- D.-sinxdx
- 28
-
- A.e
- B.2
- C.1
- D.0
