Find centralized, trusted content and collaborate around the technologies you use most.
Teams
Q&A for work
Connect and share knowledge within a single location that is structured and easy to search.
我想弄清楚（ b ^ cd ^ ab ）如何转换为（ bc u bd ），有人可以向我解释第一个公式是如何转换为第二个公式的吗？
如下图所示：
