1 令 a, b ,c 為三向量,有關其內積(inner product)與外積(cross product)之敘述,下列等式何者正確?(A)a • (b × c) = (a × b) • c (B)
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1 令 a, b ,c 為三向量,有關其內積(inner product)與外積(cross product)之敘述,下列等式何者正確? (A)a • (b × c) = (a × b) • c (B)a • (b × c) = c • (b × a) (C)a • (b × c) = (c × b) • a (D)a • (b×c) = b • (a×c)