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Define functions Fand G from R to R by the following formulas: F(x) = (x + 1)(x - 3) and G(x) = (x - 2)2 7. Prove that FG. #2. Define a relation R from R to R as follows: For all (x, y) ERYR, (x, y) e Rif, and only if, x = y2 + 1. Prove that (17,-4) ER