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函数f(x)=2x2-lnx的递增区间是A.(0,)B.(-,0)及()C.()D.()及...
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函数f(x)=2x
2-lnx的递增区间是( )
A.(0,
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACfSURBVDhP3VNBDsAgCOvL+BPf4TM8hacwmZnD
uc2L2WEmxphgi22BTxYWFpg4gVysx6wUyg6g7KeCWuX884JdpNChbtZTrJVePNg6pzgauzsDdI6w
KFEtMEUoEs+hgoeKTboITSlKUsJUuxcm1KGMvwi6jHD9hfKbWV0/9WmiMBfiku27udhHY5yJhhCd
55DEIB13RFOjUSfVZ2a9eL4BYBXpBOX9qe0AAAAASUVORK5CYII=
)
)
B.(-
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jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACfSURBVDhP3VNBDsAgCOvL+BPf4TM8hacwmZnD
uc2L2WEmxphgi22BTxYWFpg4gVysx6wUyg6g7KeCWuX884JdpNChbtZTrJVePNg6pzgauzsDdI6w
KFEtMEUoEs+hgoeKTboITSlKUsJUuxcm1KGMvwi6jHD9hfKbWV0/9WmiMBfiku27udhHY5yJhhCd
55DEIB13RFOjUSfVZ2a9eL4BYBXpBOX9qe0AAAAASUVORK5CYII=
)
,0)及(
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACwAAAAjCAYAAADv0ujUAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAFdSURBVFhH7ZfbDcMgDEU9GTuxjpdhFEZxDRQS
8ipxIQEJpPwgoIfL9aNAgw0YjJcGBrZIChSh7VvzoLDRBAD8jQIcqElP4Pr2WgXdVLi+vHziVLiJ
rKtDB1XYFw2Xh8OnTWud5Oc/W5q5QP0rxgS+fOwLhY2OltRcc3mc2LS5wgvIEiMxVgC+cHwRlbou
LmCarcOxtMy5dif0Obz36KAwV32cKGwYMItz34xt5lhxzcS3qeIFRZc5AbaIGbB/lV10GsJegF17
m57fq8vPj3lGSZaQKCW2y0XQWVS7OrD2fxR808DzUyikqz8dYliJMgd7wKeP5BfXYh75J+x8G9Yz
WGMyRf3T/FC5kliiY/ZZwpn+3/opQinbtAN2Ru+Yd5OHMz+X3fjpVSuFLaHaVJenaQp+LwHHxFyw
59UlHthlhsy3FfrWVreC426qX2vcbn5aKVd67gQuVUq6bjiFP2UnDQpiNajnAAAAAElFTkSuQmCC
)
)
C.(
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACwAAAAjCAYAAADv0ujUAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAFdSURBVFhH7ZfbDcMgDEU9GTuxjpdhFEZxDRQS
8ipxIQEJpPwgoIfL9aNAgw0YjJcGBrZIChSh7VvzoLDRBAD8jQIcqElP4Pr2WgXdVLi+vHziVLiJ
rKtDB1XYFw2Xh8OnTWud5Oc/W5q5QP0rxgS+fOwLhY2OltRcc3mc2LS5wgvIEiMxVgC+cHwRlbou
LmCarcOxtMy5dif0Obz36KAwV32cKGwYMItz34xt5lhxzcS3qeIFRZc5AbaIGbB/lV10GsJegF17
m57fq8vPj3lGSZaQKCW2y0XQWVS7OrD2fxR808DzUyikqz8dYliJMgd7wKeP5BfXYh75J+x8G9Yz
WGMyRf3T/FC5kliiY/ZZwpn+3/opQinbtAN2Ru+Yd5OHMz+X3fjpVSuFLaHaVJenaQp+LwHHxFyw
59UlHthlhsy3FfrWVreC426qX2vcbn5aKVd67gQuVUq6bjiFP2UnDQpiNajnAAAAAElFTkSuQmCC
)
)
D.(
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACwAAAAjCAYAAADv0ujUAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAFNSURBVFhH7ZfbDcMgDEU9GTt5HZZhFEahNinE
hDxbqEwFUj5CFXJyff0ohMEWDMYbJnCziHkbDJhgfXmiToUdBgCgaxTgKKoLOIGbGXbvoKlwV3mn
h3vLO5jCsWlwHV4udKs+OhvHSfz+F9hhChFSD6J1EraeBocVZPVM8g4k81BvN3kKoYKOSG0TxB41
Uqz7fg/wW5ZwBCh8z3SUDJs9Uhy3o9UHxFkskXRpj4+7BeytLYBjVGTqvocVewAsX/jBNxSP3AJm
RbMloroUfku2ELKfWeL3wDHHTFUXpf8rwTdSMnSL1eaUC5LHsHmAJ+sZG+Sfju7Aj2G5XOZw8YhZ
5kt34Kc28M4VikYrCpXVAVcfyPYQCaIemBN7nOGn8POivWKFfbBm0001Ax81IpUKc2UoGhElXrpX
B7w/Pa7WUAd8Vbcn8JVC3/4+nMIvWuEZTRrZ0SMAAAAASUVORK5CYII=
)
)及(0,
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACfSURBVDhP3VNBDsAgCOvL+BPf4TM8hacwmZnD
uc2L2WEmxphgi22BTxYWFpg4gVysx6wUyg6g7KeCWuX884JdpNChbtZTrJVePNg6pzgauzsDdI6w
KFEtMEUoEs+hgoeKTboITSlKUsJUuxcm1KGMvwi6jHD9hfKbWV0/9WmiMBfiku27udhHY5yJhhCd
55DEIB13RFOjUSfVZ2a9eL4BYBXpBOX9qe0AAAAASUVORK5CYII=
)
)
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