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Prove that the function f:[0,∞)→R given by f(x)=9x2+6x−5 is not invertible. Modify the codomain of the function f to make it invertible, and hence find f−1. |
| Answer» Prove that the function f:[0,∞)→R given by f(x)=9x2+6x−5 is not invertible. Modify the codomain of the function f to make it invertible, and hence find f−1. | |