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Consider functions f and g such that gof defined and is one one. Are f and g both necessarily one- one. Are f and g both necessarily onto. If g o f is onto ?

Posted by Anjali ? 4 years, 3 months ago

CBSE > Class 12 > Mathematics

3 answers

Nikhil Kumar 4 years, 3 months ago

Hor Kuchh

0Thank You

Nikhil Kumar 4 years, 3 months ago

When gof is one one then f is always one one but not necessarily that g is one one. When gof is onto then g always one one but not necessarily f is one one.

0Thank You

Aryan Choudhary ?? 4 years, 3 months ago

When gof is one one then f is always one one but not necessarily that g is one one. When gof is onto then g always one one but not necessarily f is one one.

3Thank You

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