曲线的拐点是[imgwidth="211"height="24"src="htt...d2a7dd1c0a94df.png"]
举一反三
- 三阶行列式[imgwidth="100"height="75"src="https://p.ananas.chaoxing.com/star3/origin/99f17d5803ba241d361ee6aaf4747bad.png"],则[imgwidth="113"height="24"src="https://p.ananas.chaoxing.com/star3/origin/3a32cf5c95786626e94530a34bf8a7da.png"](). A: -1 B: 0 C: 1 D: 2
- 已知[imgwidth="109"height="24"src="http://...f47ce43715a9d.gif"]=
- 设，且，则与[imgwidth="73"height="24"src="http...73413b9f76aa6e.png"]
- 由曲线[imgwidth="53"height="24"src="https://p.ananas.chaoxing.com/star3/origin/db4fa8875f945a05a5a4e1267be38b73.png"]、[imgwidth="37"height="21"src="https://p.ananas.chaoxing.com/star3/origin/8951f704839e2c8e32609744580906d7.png"]和[imgwidth="37"height="19"src="https://p.ananas.chaoxing.com/star3/origin/e2a3aace4ad8b56317c5010b305a51ae.png"]围成的平面图形绕[imgwidth="15"height="17"src="https://p.ananas.chaoxing.com/star3/origin/b3048d8c2bbe74ff01f7d3c8915bfdef.png"]轴旋转一周所得旋转体的体积[imgwidth="28"height="19"src="https://p.ananas.chaoxing.com/star3/origin/c9d9123939953c49b1e9b6492e79f835.png"](). A: imgwidth="35"height="41"src="https://p.ananas.chaoxing.com/star3/origin/2d760dcf355fa1cf2500875442f19085.png">; B: ; C: ; D: .
- 曲线[imgwidth="59"height="27"src="https://p.ananas.chaoxing.com/star3/origin/3cc99583084ffcc89a960073fcd99335.png"]与直线[imgwidth="77"height="41"src="https://p.ananas.chaoxing.com/star3/origin/9b130a364a2754b18314b4d1622ea3a4.png"]及[imgwidth="37"height="21"src="https://p.ananas.chaoxing.com/star3/origin/8951f704839e2c8e32609744580906d7.png"]所围成的区域的面积S(). A: imgwidth="37"height="41"src="https://p.ananas.chaoxing.com/star3/origin/cf2bafeed7198528d3b7c952a5092ab8.png" B: C: D: