Question: hello, This is one question with small proofs. so dont say chegg policy thank you i kust want to understand. right answers will be given
1. Prove the following identities using index notation ( a,b, and c are vectors, f is a scalar) a) ab=ba b) (ab)=b(a)a(b) c) (fa)=(f)a+fa d) (ab)=ab+b(a)
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