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已知lga+lgb=0,函数f(x)=ax与函数g(x)=-logbx的图象可能是A.B....
试题详情
已知lga+lgb=0,函数f(x)=a
x与函数g(x)=-log
bx的图象可能是( )
A.
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAHIAAABzCAYAAABEgVbYAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
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)
B.
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)
C.
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)
D.
相关试题
-
已知lga+lgb=0,函数f(x)=ax与函数g(x)=-logbx的图象可能是( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAHIAAABzCAYAAABEgVbYAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
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SB9tKZbF+8rcy38mV6hR/WwgngAAAABJRU5ErkJgguiPgeS8mOe9kQ==
)
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAHIAAABzCAYAAABEgVbYAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
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Mm4AAAAASUVORK5CYILoj4HkvJjnvZE=
)
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAHIAAABzCAYAAABEgVbYAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
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)
D.
-
已知lga+lgb=0,函数f(x)=ax与函数g(x)=-logbx的图象可能是( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAHIAAABzCAYAAABEgVbYAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
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)
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAHIAAABzCAYAAABEgVbYAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
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)
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAHIAAABzCAYAAABEgVbYAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
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DCBA0HYpSCEgX15ezMXFhYL07CdZ9ZGQHashcK9t27CoRQqxSIh5eXlpnp+fGyVWkIJAAiJgNl1S
QWJ+3NX3e3rSP8XZuVaXe5UGEgAxgEOwA/1/rIslSDS2bfQqBeTHx0fpVQAwpiXaF4MtyLbgAHeQ
Vu6Tk5PWfj6GVbIFicYiBQSpINWLK0hkOAAedTkuNEzWILGsheUtziDhQgEP6Sr4PdXFGiQGCvX9
dLhYJGRD4AJWSFkQjw2YNUg0HsqqjvY4gMQeP7FHob7g2YOsh+xSgkR/fXp6Wm7WxO1iD7I+6EkF
EkEKZDD4JFOPCVsESCw2Y9EZVwqQ2LUZc0LOW6aJAIkAOvokuLaxQSIw8fj4OKZx9XqWCJBombXK
sUDi5cFAa4yoTC9ytZvEgIRiMdQfA6SFGDM2GgLe1vw6dIUx64NiY4O0EKnfosRsr0/dbCwS+7Ta
7T27GgCQMd1d11qoj2LHLssCJLb2BCAqSITEYkwDqNnuY0OiPI8FSAha3XDXZZEIj6G/dCUzUxRg
y7hyhXzqSlFWJEgoCgHqUHFO1IWIjeTjmsSCBExM0LHqAJfYFwLuQ8QmpHWrRXZt1LrWTn3UChBY
7kLAoM/E3ZVHmwJKn2eKtshqgxH1QSgNQBHUplgYphiw6ByubEBaGABol5nQ7yEi1LTgC7cMl1rP
QJAKlQVIO/2gTEF8AgKYoiDYjkERkp4RcgNkLATj97bcWYkwWYD0UZwPyGq9sEBMMQDy+Pi4PL4Q
OUGYk+L/ADXG3NSnbUPK7gzIqpJgoXC3cKuwToBERAeuGC8KXC7+xuCJ0tcOARDq3p0D2ZXFbpWK
z+BRDoMn6rYxoYD0rWenQFbXNfsqjOt9OwWymmnAFUiTXHD9dm20LUthZ0BKtkZ7Sh/6b/w0Qd2A
xOjNFtR/VwqT8INBGQZkO2ORTZ8fSHGvdYvE1Mmum9oY806AlL5EBZBN8Kov4k6A9NlGlKOVwnW6
VncYgsTZyv/7p3rWgG9kB6M8uFWXIjgC9JGJF0icVrd1duTS4ADt6gF2viARncHEvumi5gn5KHRo
WRt3Ltv8Rx/ttfMBWRzFO53MirPOa1ftKEJfkG3fK/rkCQ2F431/2eaZmTmOYGTZR7ZZR6nwSoN8
QLo29KXmCXmDGHwDupeGl7qjXiYW2S741nH2RUN8QLq22GYLsvRO086TbetMeYCE4NOGw7Eb3K0P
SFeOKk+QxbigOCh8UXgiSnqoBcoY5Gqg03fUilEqRqtdX1BxBLkZ7JUDnWL0TuwneYAsDqrfHp2u
/p40WCnVIin5OBxB9u1emYAsxC/daPv8ceNCijKUC1MOV1adgqRoMlIZqkW6ttX2yROK1JSg1dJe
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m/avG6okCfdnB9ImH0tQfkgZswLpezpsSEWmrisrkK7VjtTKjvn8rEDm8tFqH+BZgXSF5fooSMo9
2YCknj8pBYyvnNmAlPpdhy+wtvLZgET/yGFL6lBgfOvJBqRvw3MrryAzIaogFWQaDVAWltNIlvap
apFp9R/s6QoymCrTVqQg0+o/2NMVZDBVpq1IQabVf7CnK8hgqkxbkYJMq/9gT1eQwVSZtiIFmVb/
wZ6uIIOpMm1F4kDWT3hNqz4+T/8H9WX3KU7M4WcAAAAASUVORK5CYILoj4HkvJjnvZE=
)
D.
-
已知lga+lgb=0,函数f(x)=ax与函数g(x)=-logbx的图象可能是( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAHIAAABzCAYAAABEgVbYAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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raQUrTKz09I3ppQEYK61IxTFmw688Uit0LVWiGH7FkSrKRaCrFBLYSZA20NGkN+aSeUFcrYgsQmE
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UHx3d6f+7fgQkOgXNa+w8vHzra4V+UbsPAygmICk9b1cX5CwRLjUFKZxSIA6+8iPj49yuTWA4sax
TlBT8QWJbgMTqgAyp+IEWb1Z64oAFXABOXbxAYn2Y1cOzcvj+urTC6StBG4W7nZnZ8ecnp5GVYwU
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NdaTjz4QDxQG+HZycahdPUIpfYzrBANpGwdF2uAIc17WBRQJb/sg4W91/3KCHPDowMViAhMCo7GA
wl0i+oRbhwW2uXaCHADS/rQKFEof2ocCHh4MPCAIYHBNV46UIAOArAKF0gHAZ/UvXDUCKus2AQ+W
7pOgIMiAIO2l0GcCSte7P0SbgA53iUU0GOIAft/+liBHAGkvCRcJUAiMLDhEmVC6zbyEOnCFIEcC
iT4N7vH4+NhsbGyY7e1tc3l5OVpigSADgUSAU+3nEGUiYEHKDN8hfztm6owgA4BEsGJTeV39HOTw
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2tkMiDHa5lOpBQkAGGOGOPMxB5D26ET8RRxRh/oD0g7Gqz/gv1cnwWr+IOuFdKVKi6xOOg6xV2pu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)
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAHIAAABzCAYAAABEgVbYAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAb8SURBVHhe7Z0tUCsxEIArkUgkEolkqpBIJBLV
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1fVaV1Egr66uvApH0o+JAfn9/a329vbU29ubJPl6q6sYkI+Pj2o0GqmbmxtvwpH0Q2JAnp2d1SAP
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jbb7om2NYl0D2YnEZz43WZA+B44BhulkxkGoic5JgvRpUh8eHlZ9oA8TuskiJAfSl0nFjDI4zY6V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)
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAHIAAABzCAYAAABEgVbYAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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=
)
D.
-
已知lga+lgb=0,函数f(x)=ax与函数g(x)=-logbx的图象可能是( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAHIAAABzCAYAAABEgVbYAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAcNSURBVHhe7Z0vUPQ8EMYrEEgGhUQikcwpJIYZ
JBJ1g2QGg0MiOYdEInGHRCKRiBNIJBKZ754e4SulbTZtetnkfTJzw/vO7TXp/rqbzTZ/CsOShQaK
LO6CN2H+CZBfX1/Zo/4nQJ6fnxNk6hr4/Pw0m5ub5uXlJfVb6Wx/9hZ5f39viqIwV1dXBJmyBo6O
jkqQu7u7Kd+Gs+1ZW6R1qwCJT87uNWuQ1q1akDm716xBWrdqQebsXrMGeXNzY66vr0u3ir/4wN3m
WLIAOZugD5yY2QKI5mb68+8VMoDMvWRzh/NpYabzb1yLuZmXUAkyuQd4MZuYycokzXw2MxWOtMiU
aP6AXMzMzFomLTIlhN9tnU9NMV1CXH6q1sg+MjWWAFkLcthHpgZx1TF+R61/Gx8qasXrsL29PZXa
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hpQrPYU9K9rvwkmB7LtJ/C+QUNbk72Ghy6en2d366XOA9LKPXh5iOq8cMexzsaRA9t120w1yFejE
jFp/DjEtA51lJO3p4tWBdE06tuMnr6f110LXenS6+n/RZKU+lUSWVQfSpY8+h401R636x48uXagf
R7puAC+qfSZipZ7ZcekD3ydnkWg01m1iEa60EKRUU2uW892diiDXDEhaHaJXuFfpXgcEKdVsBDmf
86oIMgIgaZV4hYOhiKQQpERLkWR8kgMEGQmStFpp7pUgpRqNJCfd7IggIwGSVivdlpMgpRqNKCc5
xJogIwKSVi2ZOUCQUm1GlEOqDim7rkKQEQFJq5ac0UGQUm1GlnMd70CQkQFJq3el6whSqsnIcq79
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SB9tKZbF+8rcy38mV6hR/WwgngAAAABJRU5ErkJgguiPgeS8mOe9kQ==
)
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAHIAAABzCAYAAABEgVbYAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAb8SURBVHhe7Z0tUCsxEIArkUgkEolkqpBIJBLV
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0qZwJN2rgJREa0tdC8gC0r8ETMMP/zUL/4tFI8MzsFKDAtKKGMPfpIAMz8BKDQpIK2IMf5MCMjwD
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Mm4AAAAASUVORK5CYILoj4HkvJjnvZE=
)
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAHIAAABzCAYAAABEgVbYAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAcXSURBVHhe7Z0hUOwwEIZPIpFIJAKBZE4hkUgk
6gaJxCGRnEMikbhDIpFIxAkkEonM69+73OuVttm0SbOb284wD96k6Wa/7ibZbJOJ0SsLDUykteL3
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BHl4eChNz9HlFQPSulWAxI+61+13QwxI61YtSHWvjEHOp7C2qZkvIeTCzDa/G2PdqgWp7pUxyBLf
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7kLAoM/E3ZVHmwJKn2eKtshqgxH1QSgNQBHUplgYphiw6ByubEBaGABol5nQ7yEi1LTgC7cMl1rP
QJAKlQVIO/2gTEF8AgKYoiDYjkERkp4RcgNkLATj97bcWYkwWYD0UZwPyGq9sEBMMQDy+Pi4PL4Q
OUGYk+L/ADXG3NSnbUPK7gzIqpJgoXC3cKuwToBERAeuGC8KXC7+xuCJ0tcOARDq3p0D2ZXFbpWK
z+BRDoMn6rYxoYD0rWenQFbXNfsqjOt9OwWymmnAFUiTXHD9dm20LUthZ0BKtkZ7Sh/6b/w0Qd2A
xOjNFtR/VwqT8INBGQZkO2ORTZ8fSHGvdYvE1Mmum9oY806AlL5EBZBN8Kov4k6A9NlGlKOVwnW6
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wZ6uIIOpMm1F4kDWT3hNqz4+T/8H9WX3KU7M4WcAAAAASUVORK5CYILoj4HkvJjnvZE=
)
D.
-
已知lga+lgb=0(a>0,b>0且a≠1,b≠1),则函数f(x)=ax与函数g(x)=-logbx的图象可能是( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAHsAAABwCAYAAAA+AA+8AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAahSURBVHhe7Z0tUOtMFEArkZVIJPMUkqlCIpFI
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l53Km9SZzoHsPrm/vzfHx8d2Lyyil12TvZfoWzaiER4iEcpOzJR2ukG/uow+ZZPCx+NxsEOy8cm2
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FkVUtkB4yh9P+ysyXNnG/Adj0X/uOYOaAgAAAABJRU5ErkJgguiPgeS8mOe9kQ==
)
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAHgAAABxCAYAAAAea2caAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAaSSURBVHhe7Z0tTPRAEEBPIpFIBAJDgiQXBBKJ
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ZAm2afmr99yBVQj2JT2D3BTdkVUIfnx8NAcHB/ZINiq4A2dnZ+b6+toeyUYFd2Bzc9ObMbYKbsn9
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/Ae9mET0R4h6sgAAAABJRU5ErkJgguiPgeS8mOe9kQ==
)
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAGMAAABwCAYAAAAKec6gAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
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)
D.
-
已知lga+lgb=0(a>0,b>0且a≠1,b≠1),则函数f(x)=ax与函数g(x)=-logbx的图象可能是( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAHsAAABwCAYAAAA+AA+8AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
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FkVUtkB4yh9P+ysyXNnG/Adj0X/uOYOaAgAAAABJRU5ErkJgguiPgeS8mOe9kQ==
)
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAHgAAABxCAYAAAAea2caAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
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/Ae9mET0R4h6sgAAAABJRU5ErkJgguiPgeS8mOe9kQ==
)
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAGMAAABwCAYAAAAKec6gAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAZbSURBVHhe7Z0rTOxAFEBXIpEkGCQSRcgKgiJI
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wfCNNxnJrChiQTYvnn/ehQzOSMaMqsrJkPAjI2uapqWPbchkTBaP/+lCBiUskREDHmTkzVPFIoTl
iGkrg6TJFgvuZeQ3qi93sRDVRc4gGoiKEFhE+8/3qmqiPckob6KKzZetDPIDCxBWzc7VrdnqnPyR
FUm636rdBhQZvyspsJVR17HTZ6pTGYWoL8O9jJQ/YaqfsVE4ODYyGO9hSLwO55GRwvdetUsvMvRZ
kp2d2VbebDWVQbNEGWuyeMC9jCT9zqv36UmGGU1l6KEGE1zLyJ7WmecNHnlU9uypwcggR5ArTHEl
Q+enxa7KRh1+GIQMk+qpiI+cUccgZLCYoOkctshoiIkMlseQtBthcDmCD6KXwWjsUC5JjlpG06Qd
OtHKYG6C5qnPJfquiVYGCdvF4+lcEq0MoqJ4LUXsRCnDqoKKgChl2PQrYiA6GSRurodwcSWRa6KT
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MCj1H7AAHA2TgHQ/AAAAAElFTkSuQmCC6I+B5LyY572R
)
D.
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已知lga+lgb=0(a>0,b>0且a≠1,b≠1),则函数f(x)=ax与函数g(x)=-logbx的图象可能是( )
A.![](https://img.xintiku.com/upload/f2/da/f2daec6ee5ec2d078e9c0486e35fbd16.png)
B.![](https://img.xintiku.com/upload/4f/8b/4f8bd0abf95375213350543384fa46e4.png)
C.![](https://img.xintiku.com/upload/2a/fc/2afc2a7634659b49983751f15e515bb8.png)
D.
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若lga+lgb=0,则函数f(x)=ax(a>0且a≠1)与g(x)=-logbx(b>0且b≠1)的图象可能是( )
A.![](https://img.xintiku.com/upload/7b/bd/7bbd88bc78357dc760f6a1d2d9ac2109.png)
B.![](https://img.xintiku.com/upload/fe/e9/fee97d8860c843c6c7a6a2fce84d592a.png)
C.![](https://img.xintiku.com/upload/88/33/8833903ea8579a3058d99955c3a13418.png)
D.
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已知lga+lgb=0(a>1)在同一坐标系中,函数y=ax与y=logbx的图象是下图中的( )
A.![](https://img.xintiku.com/upload/14/53/1453969ec93cfa7c3cbcd731c4aeffde.png)
B.![](https://img.xintiku.com/upload/b7/5b/b75b627352f9d5800ac854cb9641ac25.png)
C.![](https://img.xintiku.com/upload/7c/17/7c171d26cae1cda61fda82f5f017f5e2.png)
D.
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已知f(x)=ax,g(x)=-logbx,且lga+lgb=0,a≠1,b≠1,则y=f(x)与y=g(x)的图象( )
A.关于直线x+y=0对称
B.关于直线x-y=0对称
C.关于y轴对称
D.关于原点对称