灰姑娘
发表于 2025-4-1 03:15:51
Inverses and Systems of Equations,Let . be a linear transformation of ℝ.. As in the case of two dimensions, we say that the linear transformation . is an inverse of . if
无法解释
发表于 2025-4-1 06:35:45
Classification of Quadric Surfaces,A . is the 3-dimensional generalization of a conic section. Such a surface is determined by an equation in the variables . so that each term is of second degree; for example,
DALLY
发表于 2025-4-1 11:30:16
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支形吊灯
发表于 2025-4-1 15:01:08
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