Exercise use the following definition: If f: R R and g: R

Chapter 7, Problem 37E

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Exercise use the following definition: If f: R ? R and g: R ? R are functions, then the function (f + g): R ? R is defined by the formula (f + g)(x) = f(x) + g(x) for all real numbers x.ExerciseIf f: R ? R and g: R ? R are both onto, is f + g also onto? Justify your answer.

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