题目内容
(1-
)×(1-
)×(1-
)×…×(1-
).
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| 102 |
(1-
)×(1-
)×(1-
)×…×(1-
),
=(1-
)×(1+
)×(1-
)×(1+
)×…×(1-
)×(1+
),
=
×
×
×
×
×…×
×
×
,
=
×
,
=
.
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| 22 |
| 1 |
| 32 |
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| 42 |
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| 102 |
=(1-
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| 2 |
| 1 |
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| 1 |
| 3 |
| 1 |
| 3 |
| 1 |
| 10 |
| 1 |
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=
| 1 |
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| 2 |
| 2 |
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| 3 |
| 3 |
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| 9 |
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| 10 |
=
| 1 |
| 2 |
| 11 |
| 10 |
=
| 11 |
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