BREB › Assistant Enforcement Coordinator › 2021 – Preliminary › Which one is not correct?

Which one is not correct?

Which one is not correct?

a) A+0=A
b) A.1=A
c) A+A'=1
d) A.A'=1

From the BREB Assistant Enforcement Coordinator 2021 – Preliminary exam, question 48 of 59.

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