if K/E is a quadratic extension and field F is contained in K(adsbygoogle = window.adsbygoogle || []).push({});

such that FE=K and [K:F] is finite,

how do I give a non-example to show

[F: F intersects E] might not be 2?

Thanks a lot!

**Physics Forums | Science Articles, Homework Help, Discussion**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Please help! Field extension problem

**Physics Forums | Science Articles, Homework Help, Discussion**