Question: I need help understanding how to solve these problems. Thank you. Exercise 4 Draw the graph of the following functions. Then compute their range and

I need help understanding how to solve these problems. Thank you.

Exercise 4 Draw the graph of the following functions. Then compute their range and check whether they are 1-1. (a) f(:c)=\\/:E+\\/E1_1, D0m(f)={:r: \\ 3720 AND 931}. (b) f(r)=

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