Example 21
Last updated at May 1, 2017 by Teachoo
Transcript
Example 21 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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About the Author
Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He provides courses for Mathematics from Class 9 to 12. You can ask questions here.