Question 5 - Examples - Chapter 1 Class 12 Relation and Functions

Last updated at Dec. 16, 2024 by

Example 21 - Are f and g both onto, if gof is onto? - Composite funcions and one-one onto

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Question 5 Are f and g both necessarily onto, if gof is onto? Let f : {1, 2, 3, 4} {1, 2, 3, 4} f is not onto g: {1, 2, 3, 4} {1, 2, 3} g is onto gof is onto. But g & f are not necessarily onto

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