题目内容
已知a2=
(a>0),则log
a=______.
| 16 |
| 81 |
| 2 |
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∵已知a2=
(a>0),解得a=
,则 log
a=log
=log
(
)2=2,
故答案为 2.
| 16 |
| 81 |
| 4 |
| 9 |
| 2 |
| 3 |
| 2 |
| 3 |
| 4 |
| 9 |
| 2 |
| 3 |
| 2 |
| 3 |
故答案为 2.
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题目内容
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