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若10α=2,β=lg3,则=________.
试题详情
若10
α=2,β=lg3,则
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAC8AAAAqCAYAAAAj6gIfAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
=________.
相关试题
-
如果方程lg2x+(lg2+lg3)lgx+lg2•lg3=0的两根为x1,x2,那么x1•x2的值为( )
A.lg2•lg3
B.lg2+lg3
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACjSURBVDhP3VPbDcAgCGQydmIdlnEUR6Eg+Ghr
64/pR0lMEwN31+MEWRRsbMgsCCicz5hOkUgAQM9Tg3cJ/byhmGQ++KHUzdq5i4e1rimqsNnXQNcI
GxNlUM2wHpymITO+JKpEjjRT91KELIzqP9VcXncR05R8/koF5QJZcWpZeDvKpMEpMR4I+JsYBYam
UNxEQk2JDQyU4YPz+sLOv/v5siZWHyH91cG5yOK6AAAAAElFTkSuQmCC
)
D.-6
-
已知f(x)是R上的奇函数,且当x∈(-∞,0]时,f(x)=-xlg(3-x),那么f(1)的值为( )
A.0
B.lg3
C.-lg3
D.-lg4
-
设lg2=a,lg3=b,则log512等于( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACMAAAAjCAYAAAAe2bNZAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAGGSURBVFhH7ZeJDcMgDEWZjJ1Yh2UYhVFcHI7U
YHOkIoqqVI2qpsQ8f3/AVfCgl3oQC9wC44wCpcJlXDf3CONMHIyXtuA3yOWthgFLUMZb0GWUAzOR
AcsaEpIn82C1gb4uAMo7R5TADC6p04MhCcuyt57BkjEplrqrkCE3pgMTS5RU71ihgcFJKQtKrEDb
7KQYFMecgMlv2XfHZy5LfL7+zpWUwjBy4oQnCEqMwTUUtqy6pIwQcwDDmAwD1auLu5dWJDdBu4qE
ZEKMoowzbbYYqFWlVipJwyrDJCh4EqMcMA19CkxLlA2I0B7Cm744mLpEx34mL3HFmzA9gMGKKfHe
N9DczkjiT+3Ac3G3j7rlbJrN4oWRlAoHNbd73n+vLO3Zmu4e93pG9Iwo/bHhMQfixlrxZSptaAem
29ldI+54Brf+P4EZdoaMeEvKrHR2XGc4Kt4SDAkmeGa6M/xVmSHMSme4G2apM9wNs9QZTsOQDq/+
69Kx4Y+d4Xs2rZ9No01hw++PKtMHYpFY7Eel4I4AAAAASUVORK5CYII=
)
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACMAAAAjCAYAAAAe2bNZAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAGHSURBVFhH7ZeLrcMgDEU9GTuxDsswCqO4mF8e
YDA0TRQ9JWpUlThwuNeAC/igCx7EgrfAWA0I4G9tp3P/DYzVcTC6lUHHDOmMQoFlUxk/aNehM6hK
o0XNKuDQKI1zXfA8jLO2UoIU6NSpgMdOVTYVb8HPgqRvZeCUaftm3osWJdUmViYYkhFQmex2fJFY
DsCUEzk3wncvPcXXc4h9H7HxN5c/AYY6OECohV5QWNjy7CVlODuYth44DgBIwe0K4Noi9WRF8Ena
r6LBRAmGgntVWqWSNBMYqxklg8KNlVwupu6htignGXXs0H/qawDTzT7HtRaF/Wi8xKNNJSkp8C+Q
fFjwCX4MWD2/ZQeWmZcifnMcLA0lB70wI438QcvtrPe3xU3vQdcLM8yZoUthM+S2+Ot85W0qZeQE
RjrBv2Ce5AwdC/8ERqwaGeW2lFmr+sZVo+TcFkzV2SBnlqvGs8qIMDtV49UwW1Xj1TBbVeMyTFX9
8X8r2GQ8WTW+Z9P+2SRtChc8f5RNHzAaWOy+Sx0yAAAAAElFTkSuQmCC
)
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACMAAAAjCAYAAAAe2bNZAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAGHSURBVFhH7ZeLrcMgDEU9GTuxDsswCqP4YX59
gM2nLVFUJWpUNXLM8bUNLuCNLrgRC14CYzUggL+1HcYeYayOxnQrg+6AXM4onLB4ZZxBVaws6oUI
WFYfkLyYQ6M0jnVBBGdtpQRF8JY6I5gqYFn2vmYoZUyIJe/gI+RsBjAxRUn1QSl0MLRozUISAyqT
Kyk6JZsXYKq3XHfhO6clvt/+5lJawzBy0oIvEJKYnCssbFl1SRnB5wSGKTJy1HYX9yx1JLdA30VC
MN5HUcbqPlpy1KvSKpWkYZVhAhRqkrwEmI4+Oa5TlAuQoB36T31xMG2Kwn4mtzjwRZheIGelKOnZ
f6C1nbHyv7QDr/k9bnXJ2bQaxQMjKeUPam73vP5Zae3VnJ62e2pGrBlR+rDhMQfiwVzxaSpj6B1g
QvS09f8IzHQyZNI96KZemeFkVw5BeTKcldsWzMxZnLEWJ8NPlZnC7EyGp2G2JsPTMFuT4TJMNeG1
f10GyfpwMnzOpv2zado63ze4VZr+AHTGZS/Ndw5jAAAAAElFTkSuQmCC
)
D.
-
设lg2=a,lg3=b,则log512等于( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACMAAAAjCAYAAAAe2bNZAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAF2SURBVFhH7ZaLjcMgDIaZjJ1Yh2UYhVF8mEdy
ht8kaVEb3eVXiVQEzudHwIZupP8HE5whY9Jwoc5gFZjgymIe1lPMk2sVvaUDlgQTPdltVSB3wgOo
5JC+LZK3Llmfy8QQRCTYg5eiM4MRDusaa4ZTBjZueTfJQ7RmAlNSVKM+KYUBhl8qjXKIDVnfthej
vGYHRKOlpezv/yNwCQPCyS/cQVhszJKYYmmRUWwewIAiY0N9SNEcS4EZvyLFmaQNJrhxARsao9JH
qgrCAAdRvVVlmIG+GpYpagXI0JHSTwrB9ClikK12RhlchHUDGxNzv4Hy/kMJ+0pEmoav6Zt6YDTd
C2Yrri+PDJOfN9EDo0mHyQfe+cNthTBMPra5sCYw6Ph/U5M08dH/R2D2OyndaRzpE+SXYPCl2ka7
jfs2o1yuZ6K4PDKy7WDpzVSvtTBXOkOgpTCXOkOgpTAyRaVW1M4QCMOIDu9c8WW92RlOIvN5PTCa
bgRD9ANikVjsSotxXwAAAABJRU5ErkJggg==
)
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACMAAAAjCAYAAAAe2bNZAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAF2SURBVFhH7ZaNccMgDIWZjJ1Yh2UYhVFUxE+I
4InYZ9r6Wr8LuQvG8PGkgAzdSP8PJjhDxqTmQu3B2gMTXFmMm/UUa/e7orf0geUkTFp0mjB6sq/O
QA46EMlbl56udRkmhiCcYAcmdwSwLgHziq1Ju2DrxwmQM6PAeyVE1bVFKCsM22jI+jakvMhzdkDU
Zut5vGQpc/ex5TfaVIbhCToIi1+wJLpYn5xB4QB9M3CRyYNRjJGVSxicpPO/SNlokuHBsyujU1UL
mODQAgAQ5FSTkSFqScYTR0ofKQVm2n0bN4aIQUCeNZUwiYR8B6qjFsIJ3hcUzxVHms6dM9+sB0bT
vWB60v1uyzD5+yZ6YDTpMPkwPHbw7RKGycc2J9YCRrkarmgRJr4W/ghMv5PSPcVOHyA/BYMvxdba
5TiWIOXiPeLidmdkScLSi6lRe2HOVI1AW2FOVY1AW2FkiEquqFUjEIYR1d+x5Mu6WDUunPl5PTCa
bgRD9AUwGljsWnzH0wAAAABJRU5ErkJggg==
)
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACMAAAAjCAYAAAAe2bNZAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAFwSURBVFhH7ZaBjcMgDEWZjJ1YJ8swCqO4GAip
4ZskPXRFd3kqlYrAeRg3YGgh/p+Md4aMic350oPJMt7lwdzsRiF1ziVslk5cokzYyNZRntyFFUDi
gvRpgTbrYvQxJngvMsEr+Cg7IxmxYJ2+ZnjLwMS67yauEI0ZyOQtKlkflEInww+VQTnFhuy2T89B
ecwhiNq+LXl++xuJSxmQTn7gIcJwMEuii9Eyo8Q8kQFFxoHalKI+RpHp/0XKYiJVxrt+AAfqs9Jm
qgBlwAJRvRWSTGdfAsst2guQpQPFjwTJtFvEIrV2egwuwjKBg4m+d6E0/xQRX8nITvdv+iaPjMZa
MrW4vtySTPpehEdGQ5dJL7zrL7cZYJn02ubCWkEmwa/+PyJznEnxTBuc1O/cksGHamn1Ye01Ix+u
F1zmZ0ZeOxj9MtUyV+bOzRAwVebWzRAwVUZuUa4V9WYIwDLihnet+BI/vBkOMvP7PDIaC8kQvQB0
xmUvMNzBSgAAAABJRU5ErkJggg==
)
D.
-
设10a=2,lg3=b,则log26=( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAwAAAAjCAYAAACgj+sEAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAADcSURBVDhPzVTbFYUgDOtk3Yl1WIZRGCUSERB5
CH7JuXx4T9ukbYJg88hmPHKCMwKRcI2b1qgQvFW8xBcEwMOqwbw+bgneQt/KB7KZUqTjYNgHr9qA
2Z4rgXQYmCjF7x5gTOjQ4dSGCe10iKCwHU4BoTMdZ4b7kIYOg3Mvg6bzlnc3vaKr7+Jbqc6YfYRT
Bov3G8Iq9xS338PPEYqmgpEGiq0cp9kA0apDA7FyCT4tODEQ7fk0fO+/a5xCe7bVn4hl+FLTSc8M
/ewRfs2JFs3i4zNzTxq+S+v7/qGWDktr8cBIE1/mAAAAAElFTkSuQmCC
)
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABwAAAAjCAYAAACHIWrsAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAEySURBVFhH7ZbtDcQgCIaZzJ1cx2UcxVE48aOt
ShUTrr9srrlcQ3l4XzgD4McXfMxDNaC3gADxtn6qQQ1IlOAMLnibCr2dJAzojMW5PlQEBodmJS+6
0Fh69QFipVHN0I+JwmynR0t9pNs4DEw3C5DsADSuhuQXqeC7iJKoJkzf1cL8fv+bE5yAlPSGpfbH
BAYvfq30TSFjJ+XkgRTcy+ee5crYJON0vhRMPaTgUV2vuEhkgcx0cv0vKaC1szad7AwYP+3FAXs7
CXb1dpwaiP9WNNcg0BA8obKDrxmsL08aSXmqR9sBkgPxFOJOkP88S0CJ75oxB6jpZsp1LG0sXW4E
ggYILX3fCASMJkQEFG8EAvoauLMRaAC3NgIN4NZGoAHU2Aiedax7KKh6J+QAd9wSxf4AMykdKMzh
DjYAAAAASUVORK5CYII=
)
C.ab
D.a+b
-
设lg2=a,lg3=b,则log512等于( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACMAAAAjCAYAAAAe2bNZAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAGGSURBVFhH7ZeJDcMgDEWZjJ1Yh2UYhVFcHI7U
YHOkIoqqVI2qpsQ8f3/AVfCgl3oQC9wC44wCpcJlXDf3CONMHIyXtuA3yOWthgFLUMZb0GWUAzOR
AcsaEpIn82C1gb4uAMo7R5TADC6p04MhCcuyt57BkjEplrqrkCE3pgMTS5RU71ihgcFJKQtKrEDb
7KQYFMecgMlv2XfHZy5LfL7+zpWUwjBy4oQnCEqMwTUUtqy6pIwQcwDDmAwD1auLu5dWJDdBu4qE
ZEKMoowzbbYYqFWlVipJwyrDJCh4EqMcMA19CkxLlA2I0B7Cm744mLpEx34mL3HFmzA9gMGKKfHe
N9DczkjiT+3Ac3G3j7rlbJrN4oWRlAoHNbd73n+vLO3Zmu4e93pG9Iwo/bHhMQfixlrxZSptaAem
29ldI+54Brf+P4EZdoaMeEvKrHR2XGc4Kt4SDAkmeGa6M/xVmSHMSme4G2apM9wNs9QZTsOQDq/+
69Kx4Y+d4Xs2rZ9No01hw++PKtMHYpFY7Eel4I4AAAAASUVORK5CYII=
)
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACMAAAAjCAYAAAAe2bNZAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAGHSURBVFhH7ZeLrcMgDEU9GTuxDsswCqO4mF8e
YDA0TRQ9JWpUlThwuNeAC/igCx7EgrfAWA0I4G9tp3P/DYzVcTC6lUHHDOmMQoFlUxk/aNehM6hK
o0XNKuDQKI1zXfA8jLO2UoIU6NSpgMdOVTYVb8HPgqRvZeCUaftm3osWJdUmViYYkhFQmex2fJFY
DsCUEzk3wncvPcXXc4h9H7HxN5c/AYY6OECohV5QWNjy7CVlODuYth44DgBIwe0K4Noi9WRF8Ena
r6LBRAmGgntVWqWSNBMYqxklg8KNlVwupu6htignGXXs0H/qawDTzT7HtRaF/Wi8xKNNJSkp8C+Q
fFjwCX4MWD2/ZQeWmZcifnMcLA0lB70wI438QcvtrPe3xU3vQdcLM8yZoUthM+S2+Ot85W0qZeQE
RjrBv2Ce5AwdC/8ERqwaGeW2lFmr+sZVo+TcFkzV2SBnlqvGs8qIMDtV49UwW1Xj1TBbVeMyTFX9
8X8r2GQ8WTW+Z9P+2SRtChc8f5RNHzAaWOy+Sx0yAAAAAElFTkSuQmCC
)
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACMAAAAjCAYAAAAe2bNZAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAGHSURBVFhH7ZeLrcMgDEU9GTuxDsswCqP4YX59
gM2nLVFUJWpUNXLM8bUNLuCNLrgRC14CYzUggL+1HcYeYayOxnQrg+6AXM4onLB4ZZxBVaws6oUI
WFYfkLyYQ6M0jnVBBGdtpQRF8JY6I5gqYFn2vmYoZUyIJe/gI+RsBjAxRUn1QSl0MLRozUISAyqT
Kyk6JZsXYKq3XHfhO6clvt/+5lJawzBy0oIvEJKYnCssbFl1SRnB5wSGKTJy1HYX9yx1JLdA30VC
MN5HUcbqPlpy1KvSKpWkYZVhAhRqkrwEmI4+Oa5TlAuQoB36T31xMG2Kwn4mtzjwRZheIGelKOnZ
f6C1nbHyv7QDr/k9bnXJ2bQaxQMjKeUPam73vP5Zae3VnJ62e2pGrBlR+rDhMQfiwVzxaSpj6B1g
QvS09f8IzHQyZNI96KZemeFkVw5BeTKcldsWzMxZnLEWJ8NPlZnC7EyGp2G2JsPTMFuT4TJMNeG1
f10GyfpwMnzOpv2zado63ze4VZr+AHTGZS/Ndw5jAAAAAElFTkSuQmCC
)
D.
-
设lg2=a,lg3=b,则log512=________.
-
设lg2=a,lg3=b,则log512等于( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACMAAAAjCAYAAAAe2bNZAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAGGSURBVFhH7ZeJDcMgDEWZjJ1Yh2UYhVFcHI7U
YHOkIoqqVI2qpsQ8f3/AVfCgl3oQC9wC44wCpcJlXDf3CONMHIyXtuA3yOWthgFLUMZb0GWUAzOR
AcsaEpIn82C1gb4uAMo7R5TADC6p04MhCcuyt57BkjEplrqrkCE3pgMTS5RU71ihgcFJKQtKrEDb
7KQYFMecgMlv2XfHZy5LfL7+zpWUwjBy4oQnCEqMwTUUtqy6pIwQcwDDmAwD1auLu5dWJDdBu4qE
ZEKMoowzbbYYqFWlVipJwyrDJCh4EqMcMA19CkxLlA2I0B7Cm744mLpEx34mL3HFmzA9gMGKKfHe
N9DczkjiT+3Ac3G3j7rlbJrN4oWRlAoHNbd73n+vLO3Zmu4e93pG9Iwo/bHhMQfixlrxZSptaAem
29ldI+54Brf+P4EZdoaMeEvKrHR2XGc4Kt4SDAkmeGa6M/xVmSHMSme4G2apM9wNs9QZTsOQDq/+
69Kx4Y+d4Xs2rZ9No01hw++PKtMHYpFY7Eel4I4AAAAASUVORK5CYII=
)
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACMAAAAjCAYAAAAe2bNZAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAGHSURBVFhH7ZeLrcMgDEU9GTuxDsswCqO4mF8e
YDA0TRQ9JWpUlThwuNeAC/igCx7EgrfAWA0I4G9tp3P/DYzVcTC6lUHHDOmMQoFlUxk/aNehM6hK
o0XNKuDQKI1zXfA8jLO2UoIU6NSpgMdOVTYVb8HPgqRvZeCUaftm3osWJdUmViYYkhFQmex2fJFY
DsCUEzk3wncvPcXXc4h9H7HxN5c/AYY6OECohV5QWNjy7CVlODuYth44DgBIwe0K4Noi9WRF8Ena
r6LBRAmGgntVWqWSNBMYqxklg8KNlVwupu6htignGXXs0H/qawDTzT7HtRaF/Wi8xKNNJSkp8C+Q
fFjwCX4MWD2/ZQeWmZcifnMcLA0lB70wI438QcvtrPe3xU3vQdcLM8yZoUthM+S2+Ot85W0qZeQE
RjrBv2Ce5AwdC/8ERqwaGeW2lFmr+sZVo+TcFkzV2SBnlqvGs8qIMDtV49UwW1Xj1TBbVeMyTFX9
8X8r2GQ8WTW+Z9P+2SRtChc8f5RNHzAaWOy+Sx0yAAAAAElFTkSuQmCC
)
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACMAAAAjCAYAAAAe2bNZAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAGHSURBVFhH7ZeLrcMgDEU9GTuxDsswCqP4YX59
gM2nLVFUJWpUNXLM8bUNLuCNLrgRC14CYzUggL+1HcYeYayOxnQrg+6AXM4onLB4ZZxBVaws6oUI
WFYfkLyYQ6M0jnVBBGdtpQRF8JY6I5gqYFn2vmYoZUyIJe/gI+RsBjAxRUn1QSl0MLRozUISAyqT
Kyk6JZsXYKq3XHfhO6clvt/+5lJawzBy0oIvEJKYnCssbFl1SRnB5wSGKTJy1HYX9yx1JLdA30VC
MN5HUcbqPlpy1KvSKpWkYZVhAhRqkrwEmI4+Oa5TlAuQoB36T31xMG2Kwn4mtzjwRZheIGelKOnZ
f6C1nbHyv7QDr/k9bnXJ2bQaxQMjKeUPam73vP5Zae3VnJ62e2pGrBlR+rDhMQfiwVzxaSpj6B1g
QvS09f8IzHQyZNI96KZemeFkVw5BeTKcldsWzMxZnLEWJ8NPlZnC7EyGp2G2JsPTMFuT4TJMNeG1
f10GyfpwMnzOpv2zado63ze4VZr+AHTGZS/Ndw5jAAAAAElFTkSuQmCC
)
D.
-
若10α=2,β=lg3,则
=________.
-
设lg2=a,lg3=b,则log512=________.