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Last updated at Sept. 24, 2018 by Teachoo
Transcript
Example 20 Consider functions f and g such that composite gof is defined and is one-one. Are f and g both necessarily one-one. Here, we take examples and function f, g And draw their set using arrow diagram Here, f is one-one But g is not one And finding gof using arrow diagram, we see that gof is one-one But g & f are not necessarily one-one
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Example 15 Not in Syllabus - CBSE Exams 2021
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Example 20 Not in Syllabus - CBSE Exams 2021 You are here
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