# A random mathematics note

**Question:** Given two unknown numbers `A`

and `B`

. And we already know the result of `(A & B)`

and `(A & ~B)`

. How to find `A`

and `B`

?

**Answer:** `A = (A & B) | (A & ~B)`

**Question:** Given two unknown numbers `A`

and `B`

. And we already know the result of `(A & B)`

and `(A & ~B)`

. How to find `A`

and `B`

?

**Answer:** `A = (A & B) | (A & ~B)`

Date: 2019-01-25 Fri 00:00

Created: 2019-04-22 Mon 14:41