Question: Prove if the following is a function or not a function using the 3 ways. 1.(1,2)(2,3)(3,4)(5,4)} 2. {(0,3)(3,0)(1,0)(2,3)} 3. (1,3)(1,3)(2,3)(2,4)}

Prove if the following is a function or not a function using 

Prove if the following is a function or not a function using the 3 ways. 1.(1,2)(2,3)(3,4)(5,4)} 2. {(0,3)(3,0)(1,0)(2,3)} 3. (1,3)(1,3)(2,3)(2,4)}

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