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                        Example

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                        Let us see a question example.

                        This is the well-known statement of the Fibonacci sequence. We ask for two answers: the relation and a particular term of the series. Thus, the Correct answer editor will look like

                        Note that since f is marked as a User function, it is shown in blue, as any other elemental function (sin, cos, ...). This feature is also useful when considering the composition of function questions.

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