题目内容
lg52+
lg8+(
×
)6+(
)
-4(
)-
-
×80.25-(-2012)0.
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2
|
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| 16 |
| 49 |
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| 4 | 2 |
原式=2lg5+
×lg23+22×33+(2
+
)
-4×[(
)-2]-
-2
×(23)
-1
=2(lg5+lg2)+108+2-4×
-2
+
-1
=2+108+2-7-2-1
=102.
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| 1 |
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| 1 |
| 4 |
| 4 |
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| 7 |
| 4 |
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| 2 |
| 1 |
| 4 |
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| 4 |
=2(lg5+lg2)+108+2-4×
| 7 |
| 4 |
| 1 |
| 4 |
| 3 |
| 4 |
=2+108+2-7-2-1
=102.
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