题目内容
设P=
+
+
+
,则( )
| 1 |
| log211 |
| 1 |
| log311 |
| 1 |
| log411 |
| 1 |
| log511 |
| A.0<P<1 | B.1<P<2 | C.2<P<3 | D.3<P<4 |
P=
+
+
+
=log112+log113+log114+log115
=log11(2×3×4×5)
=log11120.
∴log1111=1<log11120<log11121=2.
故选B.
| 1 |
| log211 |
| 1 |
| log311 |
| 1 |
| log411 |
| 1 |
| log511 |
=log112+log113+log114+log115
=log11(2×3×4×5)
=log11120.
∴log1111=1<log11120<log11121=2.
故选B.
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相关题目
设P=
+
+
+
,则( )
| 1 |
| log211 |
| 1 |
| log311 |
| 1 |
| log411 |
| 1 |
| log511 |
| A、0<P<1 |
| B、1<P<2 |
| C、2<P<3 |
| D、3<P<4 |