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QUESTION
Let L: IR n \rightarrow IR m be a linear mapping. What can we say about the injectivity, the surjectivity, the bijectivity of L if:
Let L: IRn IRm be a linear mapping. What can we say about the injectivity, the surjectivity, & the bijectivity of L if:
a) n > m
b) n = m
c) n < m
Also, give a simple example for each case.
