- A.(<img src="//img1.yqda.net/question-name/49/be4990564bf05655a7cb41490a043c.png" width="16" height="42"/>,<img src="//img1.yqda.net/question-name/8c/962cb5a8aef168fb3abea9c0892c1c.png" width="16" height="42"/>)
- B.(5,-1)
- C.(2,3)
- D.(5,1)
- A.y=sin(4x+<img src="//img1.yqda.net/question-name/c0/bf34f8d58cfa240783992f3995f20a.png" width="26" height="42"/>)
- B.y=sin(4x+<img src="//img1.yqda.net/question-name/22/3bcac829045e507433590501e03254.png" width="18" height="42"/>)
- C.y=sin4x
- D.y=sinx
- A.k<0
- B.9<k<15
- C.16<k<25
- D.k>0
- A.8
- B.9
- C.10
- D.12
- 16
-
函数
的奇偶性分别是()
- A.奇函数,奇函数
- B.奇函数,偶函数
- C.偶函数,偶函数
- D.偶函数,奇函数
- A.{0}
- B.{(x,y)|y<sup>2</sup>=-x<sup>2</sup>,x∈R,y∈R}
- C.{x||x|=5}
- D.{x|2x<sup>2</sup>-3x+2=0}
- A.15°
- B.20°
- C.30°
- D.40°
- A.等腰三角形
- B.钝角三角形
- C.直角三角形
- D.锐角三角形
- A.24
- B.48
- C.60
- D.120
- A.0<a<<img src="//img1.yqda.net/question-name/7b/9ba089bb19a9fbc8084298ffe91784.png" width="16" height="42"/>
- B.a><img src="//img1.yqda.net/question-name/c4/08fbcc25b5444864b2769771824e4b.png" width="16" height="42"/>
- C.<img src="//img1.yqda.net/question-name/45/cffeeeee611bea1ee61e368fb41bfa.png" width="16" height="42"/><a<1
- D.0<a<<img src="//img1.yqda.net/question-name/93/df94ed5657fd1e03e96f2c04ee921b.png" width="16" height="42"/>或a>1
- 22
-
()
- A.(a-b)<sup>2</sup>
- B.(a+b)<sup>2</sup>
- C.a<sup>2</sup>-b<sup>2</sup>
- D.a<sup>2</sup>+b<sup>2</sup>
- A.2
- B.<img src="//img1.yqda.net/question-name/08/180ea9ee92378872986feec1ae6c99.png" width="34" height="23"/>
- C.4
- D.5
- A.40
- B.141
- C.277
- D.1890
- A.3y+2x-18=0
- B.2y+3x-18-0
- C.3y-2x-18=0
- D.2y-3x-18=0
- A.3
- B.-3
- C.4
- D.-4
- A.<img src="//img1.yqda.net/question-name/f4/1d92d7a5d8740bbc48759bc9859f06.png" width="72" height="42"/>
- B.<img src="//img1.yqda.net/question-name/cc/b5b51e07e523389059cd34cc5f992c.png" width="60" height="42"/>
- C.<img src="//img1.yqda.net/question-name/1e/4eb964d31764577dd9c44667bfade7.png" width="60" height="42"/>
- D.<img src="//img1.yqda.net/question-name/d1/c3e53eb368b3b0de50b89c2d227727.png" width="72" height="42"/>
- 28
-
不等式
的解集是()
- A.{x|5<x<16}
- B.{x|6<x<18}
- C.{x|7<x<20}
- D.{x|8<x<22}