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## Manoj Chauhan is teaching live on Unacademy Plus

Manoj Chauhan

Maths faculty for IIT JEE (Main and Advance), Maths Specialist for Calculus, Ex Senior faculty Vibrant Academy,Top notch online faculty

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Ajsal Shereef

8 months ago

In last question discussed in this lecture, How can we apply open mapping theorem? The arguments in the question doesn't guarantee that the function is defined in a domain, but instead it only says function is defined in an open set. Open mapping theorem is applied only if a non constant function is defined on a domain. Am I missing any concepts?

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