Prove the following Kronecker-delta identities: a) dij Aj = Aj; b) dikdkj = dij.

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Topic: KRONECKER DELTA AND LEVI-CIVITA SYMBOL

 

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3. Prove the following Kronecker-delta identities:
a) dij Aj = Aj;
b) dikdkj = dij.
Transcribed Image Text:3. Prove the following Kronecker-delta identities: a) dij Aj = Aj; b) dikdkj = dij.
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