Show that the function f(x) = ex from the set of real

Chapter 1, Problem 28E

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QUESTION:

Show that the function f(x) = ex from the set of real numbers to the set of real numbers is not invertible, but if the codomain is restricted lo the set of positive real numbers, the resulting function is invertible.

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QUESTION:

Show that the function f(x) = ex from the set of real numbers to the set of real numbers is not invertible, but if the codomain is restricted lo the set of positive real numbers, the resulting function is invertible.

ANSWER:

Solution Step 1:We have to show that the function from the set of real numbers to the set of nonnegative real numbers is not invertible,but if the domain is restricted to the set of nonnegative real numbers,the resulting function is invertible

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