(i) i got I, (ii) 3I (iii) (3a.(Cb))d - Cd (iv) b X a (v) 0 which one is incorrect???
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Originally Posted by szpengchao (i) i got I, (ii) 3I (iii) (3a.(Cb))d - Cd (iv) b X a (v) 0 which one is incorrect??? I'm not so sure about (ii) ..... While it's true that , and so , I don't think the summation convention lets you say ....
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