皮皮学,免费搜题
登录
搜题
【单选题】
_______ Mr Smith didn’t feel well, he still come to give us lessons. [ ]
A.
So
B.
Because
C.
Though
D.
As
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
微信内点击右上角“…”即可分享
反馈
参考答案:
举一反三
【单选题】使得函数 y=5cos(2x - )取得最大值的 x 值是 ( )
A.
K + ( K ∈ Z )
B.
2K + ( K ∈ Z )
C.
查看完整题目与答案
【单选题】She had not seen her father all ________, because he mostly worked on the ships.
A.
too much
B.
very much
C.
that much
D.
so much
查看完整题目与答案
【单选题】She had not seen her father all _________, because he most worked on the ships.
A.
too much
B.
very much
C.
that much
D.
so much
查看完整题目与答案
【简答题】已知函数 f(x)=sin x 2 cos x 2 + 1 2 sin(x+ π 2 ) . (1)写出f(x)的最小正周期以及单调区间; (2)若函数 h(x)=cos(x+ 5π 4 ) ,求函数y=log 2 (f(x)?h(x))的最大值,以及使其取得最大值的x的集合.
查看完整题目与答案
【单选题】函数 y = 5 - 2cos x 取最小值时的 x 集合是
A.
.{ x | x = 0}
B.
{ x | x =π}
C.
{ x | x = 2 k π, k ∈ Z }
D.
{ x | x =π+2 k π, k ∈ Z }
查看完整题目与答案
【简答题】Mary could not resist the temptation to whisper about what she had seen in her friend's ear.
查看完整题目与答案
【简答题】已知向量 a =(cosωx-sinωx,sinωx) , b =(-cosωx-sinωx,2 3 cosωx) ,其中ω>0,且函数 f(x)= a ? b +λ (λ为常数)的最小正周期为π. (Ⅰ)求函数y=f(x)的图象的对称轴; (Ⅱ)若函数y=f(x)的图象经过点 ( π 4 ,0) ,求函数y=f(x)在区间 [0, 5π 12 ] 上的取值范围.
查看完整题目与答案
【简答题】The washwoman was very old, as could be seen from the wrinkles in her face and the way she had to struggle to carry her big bundle of laundry. But 1 her aging body, her spirit was still strong. Year a...
查看完整题目与答案
【简答题】求函数y=-cos 2 x+ 3 cosx + 5 4 的最大值及最小值,并写出x取何值时函数有最大值和最小值.
查看完整题目与答案
【简答题】I had never seen her wearing colourful clothes. In fact, she really did not know how to ________________.
查看完整题目与答案
相关题目:
【单选题】使得函数 y=5cos(2x - )取得最大值的 x 值是 ( )
A.
K + ( K ∈ Z )
B.
2K + ( K ∈ Z )
C.
查看完整题目与答案
【单选题】She had not seen her father all ________, because he mostly worked on the ships.
A.
too much
B.
very much
C.
that much
D.
so much
查看完整题目与答案
【单选题】She had not seen her father all _________, because he most worked on the ships.
A.
too much
B.
very much
C.
that much
D.
so much
查看完整题目与答案
【简答题】已知函数 f(x)=sin x 2 cos x 2 + 1 2 sin(x+ π 2 ) . (1)写出f(x)的最小正周期以及单调区间; (2)若函数 h(x)=cos(x+ 5π 4 ) ,求函数y=log 2 (f(x)?h(x))的最大值,以及使其取得最大值的x的集合.
查看完整题目与答案
【单选题】函数 y = 5 - 2cos x 取最小值时的 x 集合是
A.
.{ x | x = 0}
B.
{ x | x =π}
C.
{ x | x = 2 k π, k ∈ Z }
D.
{ x | x =π+2 k π, k ∈ Z }
查看完整题目与答案
【简答题】Mary could not resist the temptation to whisper about what she had seen in her friend's ear.
查看完整题目与答案
【简答题】已知向量 a =(cosωx-sinωx,sinωx) , b =(-cosωx-sinωx,2 3 cosωx) ,其中ω>0,且函数 f(x)= a ? b +λ (λ为常数)的最小正周期为π. (Ⅰ)求函数y=f(x)的图象的对称轴; (Ⅱ)若函数y=f(x)的图象经过点 ( π 4 ,0) ,求函数y=f(x)在区间 [0, 5π 12 ] 上的取值范围.
查看完整题目与答案
【简答题】The washwoman was very old, as could be seen from the wrinkles in her face and the way she had to struggle to carry her big bundle of laundry. But 1 her aging body, her spirit was still strong. Year a...
查看完整题目与答案
【简答题】求函数y=-cos 2 x+ 3 cosx + 5 4 的最大值及最小值,并写出x取何值时函数有最大值和最小值.
查看完整题目与答案
【简答题】I had never seen her wearing colourful clothes. In fact, she really did not know how to ________________.
查看完整题目与答案
参考解析:
知识点:
题目纠错 0
发布