Practice - Functions
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Practice Questions
Test your understanding with targeted questions
What is a function?
💡 Hint: Think about how every input value relates uniquely to an output.
Define injective function.
💡 Hint: Focus on the unique output for each input!
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What is the definition of a bijective function?
💡 Hint: Think about the definitions of injective and surjective.
True or False: Every injective function is surjective.
💡 Hint: Reflect on the definitions of both types of functions.
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Challenge Problems
Push your limits with advanced challenges
Prove that the function f(n) = 3n + 2 is bijective.
💡 Hint: Consider how to invert the function.
If f and g are functions such that f: A → B and g: B → C, create a composite function and explain its significance.
💡 Hint: Think about what it means to apply one function after the other.
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Reference links
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