首页
(Ⅰ)已知:,求cotα的值.(Ⅱ)已知,α为锐角,求 的值.
试题详情
(Ⅰ)已知:
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAGsAAAASCAYAAABckiAFAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
,求cotα的值.
(Ⅱ)已知
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAGMAAAAjCAYAAACAY7T5AAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
,α为锐角,求
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAJEAAAAjCAYAAACU2uhdAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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=
)
的值.
相关试题
-
(Ⅰ)已知:
,求cotα的值.
(Ⅱ)已知
,α为锐角,求
的值.
-
设锐角θ使关于x的方程x2+4xcosθ+cotθ=0有重根,则θ的弧度数为( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAkAAAAjCAYAAABGpiBAAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAANJJREFU
OE/FU9sNxDAI41bOOmzCHEyRJSivRGnKXf56SJWi1MImNh/RglMZ6FRwAjjT6yAWBLAJH1+j7mqA
EYX10AnF7zpJayTxO2oKZ2wBYhSoQV2oRUcHoZ+2TkYBg7ZVIOuiopOik4LyzESpybuAjElceE46
WN9/8bPFFrfSknH/n6gswudDptl7CtwOuP+8R8WcT4OrB1FbwmDU8I2xt6Ro6LILcmSoooU1GkEV
mV+7FaCgn9HxjD9Ep8YlwVP4zPX3RVh3LxeiWqlfgXk5vhcoRz5Wn9bxVgAAAABJRU5ErkJggg==
)
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAC4AAAAjCAYAAADrJzjpAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACgAAAAjCAYAAADmOUiuAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
D.
-
已知cot2α=1+2cot2β,求证:sin2β=2-2cos2α.
-
已知tana=4,cotβ=
,则tan(a+β)=( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAAjCAYAAABLuFAHAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAALdJREFU
SEvtVdENhDAIrSuzTjdhjk7BEmg9o9IAxXrxkoskfig83gOhnXixNGoVPGppFLgqbsElp1qGeHLR
KSSYkFEEEiMAI4XAxCJuSQaA8tspj1szITBYtFrNR2JfstqwHdyR7IJ7kh1wX7INDkg2wRHJfsMC
c/vd2Q4Q7iH3mNsNir7/RcPqVCVj8Q3fp9slb8eOAnZ8p19VOFvMrPte8PMNW4fguGLE9eL47q3k
leVvY3/HPAOIkGODVf5knAAAAABJRU5ErkJggg==
)
B.-![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAAjCAYAAABLuFAHAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAALdJREFU
SEvtVdENhDAIrSuzTjdhjk7BEmg9o9IAxXrxkoskfig83gOhnXixNGoVPGppFLgqbsElp1qGeHLR
KSSYkFEEEiMAI4XAxCJuSQaA8tspj1szITBYtFrNR2JfstqwHdyR7IJ7kh1wX7INDkg2wRHJfsMC
c/vd2Q4Q7iH3mNsNir7/RcPqVCVj8Q3fp9slb8eOAnZ8p19VOFvMrPte8PMNW4fguGLE9eL47q3k
leVvY3/HPAOIkGODVf5knAAAAABJRU5ErkJggg==
)
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAAjCAYAAABLuFAHAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAPBJREFU
SEvdlY0NAyEIhe3KrOMmzuEULkHFMx5Qf9Br0qQmTdqrHzwR3r0wL3e6CD5d7hQsijUcvaNjiI+P
/RQSTgGD2JgwAGBIJjih2JeDAQT5jMWZnjkFQBil7Z35DjyX3C1YgxeSp/BK8gReSx7DBslD2CJ5
XjBD3363tw0J25ZnmfUEWX//RcGoq1xn8Mvz6izKUq5qR19tR8MRfTOD/D0H4Ty7KvpTwUk6C/mb
HeYdQ+q6si/tn5kr3Bz1BC4xauG4p83PrBqdRtUxN92Cy60w6RswWVOv2rwR+F22+7+aRL92no3k
zvDrvb/L/AYVvluOqOSfjgAAAABJRU5ErkJggg==
)
D.-
-
已知
,则cotα=________.
-
已知cot14°=α,那么tan152°=________(结果用α表示).
-
已知tana=4,cotβ=
,则tan(a+β)=( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAAjCAYAAABLuFAHAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAALdJREFU
SEvtVdENhDAIrSuzTjdhjk7BEmg9o9IAxXrxkoskfig83gOhnXixNGoVPGppFLgqbsElp1qGeHLR
KSSYkFEEEiMAI4XAxCJuSQaA8tspj1szITBYtFrNR2JfstqwHdyR7IJ7kh1wX7INDkg2wRHJfsMC
c/vd2Q4Q7iH3mNsNir7/RcPqVCVj8Q3fp9slb8eOAnZ8p19VOFvMrPte8PMNW4fguGLE9eL47q3k
leVvY3/HPAOIkGODVf5knAAAAABJRU5ErkJggg==
)
B.-![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAAjCAYAAABLuFAHAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAALdJREFU
SEvtVdENhDAIrSuzTjdhjk7BEmg9o9IAxXrxkoskfig83gOhnXixNGoVPGppFLgqbsElp1qGeHLR
KSSYkFEEEiMAI4XAxCJuSQaA8tspj1szITBYtFrNR2JfstqwHdyR7IJ7kh1wX7INDkg2wRHJfsMC
c/vd2Q4Q7iH3mNsNir7/RcPqVCVj8Q3fp9slb8eOAnZ8p19VOFvMrPte8PMNW4fguGLE9eL47q3k
leVvY3/HPAOIkGODVf5knAAAAABJRU5ErkJggg==
)
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAAjCAYAAABLuFAHAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAPBJREFU
SEvdlY0NAyEIhe3KrOMmzuEULkHFMx5Qf9Br0qQmTdqrHzwR3r0wL3e6CD5d7hQsijUcvaNjiI+P
/RQSTgGD2JgwAGBIJjih2JeDAQT5jMWZnjkFQBil7Z35DjyX3C1YgxeSp/BK8gReSx7DBslD2CJ5
XjBD3363tw0J25ZnmfUEWX//RcGoq1xn8Mvz6izKUq5qR19tR8MRfTOD/D0H4Ty7KvpTwUk6C/mb
HeYdQ+q6si/tn5kr3Bz1BC4xauG4p83PrBqdRtUxN92Cy60w6RswWVOv2rwR+F22+7+aRL92no3k
zvDrvb/L/AYVvluOqOSfjgAAAABJRU5ErkJggg==
)
D.-
-
已知sinα+cosα=
,则tanα+cotα等于( )
A.-1
B.-2
C.1
D.2
-
已知tana=4,cotβ=
,则tan(a+β)=( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAAjCAYAAABLuFAHAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAALdJREFU
SEvtVdENhDAIrSuzTjdhjk7BEmg9o9IAxXrxkoskfig83gOhnXixNGoVPGppFLgqbsElp1qGeHLR
KSSYkFEEEiMAI4XAxCJuSQaA8tspj1szITBYtFrNR2JfstqwHdyR7IJ7kh1wX7INDkg2wRHJfsMC
c/vd2Q4Q7iH3mNsNir7/RcPqVCVj8Q3fp9slb8eOAnZ8p19VOFvMrPte8PMNW4fguGLE9eL47q3k
leVvY3/HPAOIkGODVf5knAAAAABJRU5ErkJggg==
)
B.-![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAAjCAYAAABLuFAHAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAALdJREFU
SEvtVdENhDAIrSuzTjdhjk7BEmg9o9IAxXrxkoskfig83gOhnXixNGoVPGppFLgqbsElp1qGeHLR
KSSYkFEEEiMAI4XAxCJuSQaA8tspj1szITBYtFrNR2JfstqwHdyR7IJ7kh1wX7INDkg2wRHJfsMC
c/vd2Q4Q7iH3mNsNir7/RcPqVCVj8Q3fp9slb8eOAnZ8p19VOFvMrPte8PMNW4fguGLE9eL47q3k
leVvY3/HPAOIkGODVf5knAAAAABJRU5ErkJggg==
)
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAAjCAYAAABLuFAHAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAPBJREFU
SEvdlY0NAyEIhe3KrOMmzuEULkHFMx5Qf9Br0qQmTdqrHzwR3r0wL3e6CD5d7hQsijUcvaNjiI+P
/RQSTgGD2JgwAGBIJjih2JeDAQT5jMWZnjkFQBil7Z35DjyX3C1YgxeSp/BK8gReSx7DBslD2CJ5
XjBD3363tw0J25ZnmfUEWX//RcGoq1xn8Mvz6izKUq5qR19tR8MRfTOD/D0H4Ty7KvpTwUk6C/mb
HeYdQ+q6si/tn5kr3Bz1BC4xauG4p83PrBqdRtUxN92Cy60w6RswWVOv2rwR+F22+7+aRL92no3k
zvDrvb/L/AYVvluOqOSfjgAAAABJRU5ErkJggg==
)
D.-
-
已知tana=4,cotβ=
,则tan(a+β)=( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAAjCAYAAABLuFAHAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACsSURBVEhL7ZXZDYQwDERdmXtKO24mpbiU4ZRY
Q+JBgl0ktEh8gPPsSXxEcOGRCyzuh2sRiMS31KPGY2Q3WFjoMFWYn4IdYd3oTNXiv9UP3bObQlth
RwcE7kuegudwIpnCmWQC55JzmEhOYSaZ7pnVPc1z5uBBeN89Z79fcWBTRUm76dGxLamqZR07DTix
feS5ovQio237w78/sLkItuslXC2J7cF+ZnPqa2NoAFzIhwWuW5GnAAAAAElFTkSuQmCC
)
B.-![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAAjCAYAAABLuFAHAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACsSURBVEhL7ZXZDYQwDERdmXtKO24mpbiU4ZRY
Q+JBgl0ktEh8gPPsSXxEcOGRCyzuh2sRiMS31KPGY2Q3WFjoMFWYn4IdYd3oTNXiv9UP3bObQlth
RwcE7kuegudwIpnCmWQC55JzmEhOYSaZ7pnVPc1z5uBBeN89Z79fcWBTRUm76dGxLamqZR07DTix
feS5ovQio237w78/sLkItuslXC2J7cF+ZnPqa2NoAFzIhwWuW5GnAAAAAElFTkSuQmCC
)
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAAjCAYAAABLuFAHAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAADjSURBVEhL3ZWNDcQgCIWZjJ1cx2UchVE4UWPw
58Be79LkmjRprR8+BV6Bb1xwg+XvwykAA4x3SKvGdWWKHIeJxBGRIx3BxMO8HAwxjmMtjrtnisi4
WzYHcOD3kmVxGzYku7Al2YFtyTbsSDZhT7K7Z6/u3TxbAR6E5+45ff+LA5OKgk3Tl/HmKpOd1FSl
0GxnhhOHbgT5OQfRvMqzfJxgGl1FvO0c1uUl6rayq/Z15QZ3N/0ELjHawWk/s/c8dYW0KSgnvQSX
rCjpF2Cxpd1p60LQuez5r0Uy/3Ie7GfPp35mQy9VCX7xEijkrAAAAABJRU5ErkJggg==
)
D.-