题目内容
计算:(
-1)×(
-1)×(
-1)×…×(
-1)×(
-1).
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原式=-
×(-
)×(-
)×…×(-
)×(-
)=-(
×
×
×…×
×
)=-
.
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| 10 |
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| 9 |
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| 8 |
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| 1 |
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| 9 |
| 10 |
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| 9 |
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| 8 |
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| 1 |
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| 1 |
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