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下列命题正确的是A.函数y=sin(2x+)在区间内单调递增B.函数y=cos4x-sin...
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下列命题正确的是( )
A.函数y=sin(2x+
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAkAAAAjCAYAAABGpiBAAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAMZJREFU
OE/FlOENxCAIhbmVWYdNmIMpWIJTQOMpF/+1JE2MfYUHfOnHWsAtuugWcBN4pcdFYgTQOzweZHU3
IEQm7aBM5nfKhsgWryOmcSEMkZBBLVJjjIwuIj9tmXoJGGWxEvUszXSWUG6iPAtzevIsYKMTN56d
jqrPT/y+4o5buZJx/w4qufnhbdtbemo8za0HW7sOTPWHHaFKtI6pwGSDLudVe1pS7UTs+A7pytPB
+Mz3F9+pCErPEfQvlyUXvl/4F9zJ/ALF9k9a19NXMAAAAABJRU5ErkJggg==
)
)在区间
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADQAAAAjCAYAAADbqynIAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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==
)
内单调递增
B.函数y=cos
4x-sin
4x的最小正周期为2π
C.函数y=cos(x+
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAkAAAAjCAYAAABGpiBAAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAMZJREFU
OE/FlOENxCAIhbmVWYdNmIMpWIJTQOMpF/+1JE2MfYUHfOnHWsAtuugWcBN4pcdFYgTQOzweZHU3
IEQm7aBM5nfKhsgWryOmcSEMkZBBLVJjjIwuIj9tmXoJGGWxEvUszXSWUG6iPAtzevIsYKMTN56d
jqrPT/y+4o5buZJx/w4qufnhbdtbemo8za0HW7sOTPWHHaFKtI6pwGSDLudVe1pS7UTs+A7pytPB
+Mz3F9+pCErPEfQvlyUXvl/4F9zJ/ALF9k9a19NXMAAAAABJRU5ErkJggg==
)
)的图象是关于点(
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAkAAAAjCAYAAABGpiBAAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAANJJREFU
OE/FU9sNxDAI41bOOmzCHEyRJSivRGnKXf56SJWi1MImNh/RglMZ6FRwAjjT6yAWBLAJH1+j7mqA
EYX10AnF7zpJayTxO2oKZ2wBYhSoQV2oRUcHoZ+2TkYBg7ZVIOuiopOik4LyzESpybuAjElceE46
WN9/8bPFFrfSknH/n6gswudDptl7CtwOuP+8R8WcT4OrB1FbwmDU8I2xt6Ro6LILcmSoooU1GkEV
mV+7FaCgn9HxjD9Ep8YlwVP4zPX3RVh3LxeiWqlfgXk5vhcoRz5Wn9bxVgAAAABJRU5ErkJggg==
)
,0)成中心对称的图形
D.函数y=tan(x+
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAkAAAAjCAYAAABGpiBAAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAMZJREFU
OE/FlOENxCAIhbmVWYdNmIMpWIJTQOMpF/+1JE2MfYUHfOnHWsAtuugWcBN4pcdFYgTQOzweZHU3
IEQm7aBM5nfKhsgWryOmcSEMkZBBLVJjjIwuIj9tmXoJGGWxEvUszXSWUG6iPAtzevIsYKMTN56d
jqrPT/y+4o5buZJx/w4qufnhbdtbemo8za0HW7sOTPWHHaFKtI6pwGSDLudVe1pS7UTs+A7pytPB
+Mz3F9+pCErPEfQvlyUXvl/4F9zJ/ALF9k9a19NXMAAAAABJRU5ErkJggg==
)
)的图象是关于直线x=
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAkAAAAjCAYAAABGpiBAAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAANJJREFU
OE/FU9sNxDAI41bOOmzCHEyRJSivRGnKXf56SJWi1MImNh/RglMZ6FRwAjjT6yAWBLAJH1+j7mqA
EYX10AnF7zpJayTxO2oKZ2wBYhSoQV2oRUcHoZ+2TkYBg7ZVIOuiopOik4LyzESpybuAjElceE46
WN9/8bPFFrfSknH/n6gswudDptl7CtwOuP+8R8WcT4OrB1FbwmDU8I2xt6Ro6LILcmSoooU1GkEV
mV+7FaCgn9HxjD9Ep8YlwVP4zPX3RVh3LxeiWqlfgXk5vhcoRz5Wn9bxVgAAAABJRU5ErkJggg==
)
成轴对称的图形
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