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I am having trouble understanding the proofs in Marion and Thorton [Newest Edition]. The section where he goes through proof of products in tensor notation. An example is page 26 example 1.6. I don't get the switching of the indices on the very last part. Also can someone prove to me that [tex] \vec{A}\times \vec{B}=-\vec{b}\times \vec{A}[/tex] using tensor summation notation. Want to make sure I am doing it right.

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# Homework Help: M&T help

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