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10:21 AM
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Q: Infinitesimal rotations and isotropic tensors of rank 2

daljit97An infinitesimal rotation can always be written in the following form: $$R_{ij} = \delta_{ij} + aW{_{ij}}$$ with $|a| << 1$ and $W_{ij} = -W_{ji} = \epsilon_{ijk}p_k$. Now my lecture notes mention that if I have an isotropic tensor $T_{ij}$ then it is possible to write the following identity $$\e...

And now I see that the first one was closed and the migration bounced back - so the tags on that one cannot be edited: math.stackexchange.com/posts/3874004/revisions stats.stackexchange.com/posts/492893/revisions
 
 
7 hours later…
5:14 PM
A new tag was created by Raffaele.
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Q: one equation three unknowns

StaceyCould someone point me in the right direction as to how to solve: 7a+8b+9c = 1744 I need to know how to do this for other three unknown equations a well so the answer alone won't help me. Thanks

 

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