Math Problem Statement

∑ 3 k=1 ϵijkϵpqk = δipδjq − δiqδjp (b) 上記の恒等式を用いて,以下を正規直交座標系の成分によって証明せよ. a × (b × c) = (a · c)b − (a · b)c

Solution

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Math Problem Analysis

Mathematical Concepts

Vector Calculus
Tensor Notation
Cross Product
Kronecker Delta
Epsilon Tensor

Formulas

∑k=1^3 εijk εpqk = δip δjq − δiq δjp
a × (b × c) = (a · c)b − (a · b)c

Theorems

Vector Triple Product Identity
Kronecker Delta Identity

Suitable Grade Level

University (Advanced Undergraduate or Graduate Level)