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Hi Thanks for ur response:) I attached the relevant file, hope that now it's easier Thanks again MAry:)

1. (a) Remembering the distinction between summation indices and free indices, look at the following equations and state whether they conform to tensor notation, and if not why not: (i) Tmn=Am^nB (ii) Uij^i=Ai^kDk (iii) Vjk^ii=Ajk (iv) Ai^j=Xi^iC^j+Yi^j (b) (i) Write out in...