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单词
newton's identity
释义
Newton's identity
Newton's identity
[
nüt·ənz ī′dendə‚dē
]
(mathematics)
The identity
C
(
n
,
r
)
C
(
r
,
k
) =
C
(
n
,
k
)
C
(
n
-
k
,
r
-
k
), where, in general,
C
(
n
,
r
) is the number of distinct subsets of
r
elements in a set of
n
elements (the binomial coefficient).
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48 ad
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4 ad
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更新时间：2025/12/13 3:14:53