# Parseval theorem in $L^2(T)$ [closed]

If $$f$$ and $$g$$ are elements of $$L^2(T)$$ where $$T$$ is the unit circle in the complex plane, show the assertion of Parsevals theorem in Rudin Real and Complex Analysis page 91 (under Elementary Hilbert Spaces) sorry but i cant upload the image since i am a newbie here and im not allowed to do so. You may edit this post also.

## closed as off-topic by T. Bongers, user10354138, Lord Shark the Unknown, onurcanbektas, André 3000Dec 7 at 4:21

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