Question

Chứng minh A\(B giao C) =A\B hợp A\C 

Answer 1

https://lazi.vn/edu/exercise/cho-cac-tap-hop-a-b-va-c-cmr-abc-abac

A vao day tham khao nhe !

~G#2k5~

Answer 2

\(A\backslash\left(B\cap C\right)=A\B\)\(\cup A\C\)

\(\left[{}\begin{matrix}x\in A\\\left\{{}\begin{matrix}x\in B\\x\in C\end{matrix}\right.\end{matrix}\right.\)

\(\left[{}\begin{matrix}\left\{{}\begin{matrix}x\in A\\x\notin B\end{matrix}\right.\\\left\{{}\begin{matrix}x\in A\\x\notin C\end{matrix}\right.\end{matrix}\right.\)