2 求與下列何者相等？(A)(u ⋅u)(v × v) (B)(u × v)(u ⋅ v) (C)(u ⋅u)(v ⋅ v) (D)(u ×u)⋅(v × v)

問題詳情

2 求

與下列何者相等？
(A)(u ⋅u)(v × v)
(B)(u × v)(u ⋅ v)
(C)(u ⋅u)(v ⋅ v)
(D)(u ×u)⋅(v × v)

參考答案

答案：C
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)