Let f: R2 R³ be a linear map such that f(1,2)= (1,1,2), and f(2, 1) = (2,2,1) which equalitie are correct? f(0,0) = (0,0,0). f(1, 1) = (1, 1, 1). f(-1, 1) = (-1,-1, 1). f(-1,-1) = (-1,-1,1).

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