Решить логическое уравнение 1. (b or c and f and c and b) or not f 2. a and b or not (a and not b)

(B v C & F & C & B) v !F = B v !F
В скобках B v C & F & C & B = B & (1 v C & F & C) = B

A & B v !(A & !B) = A & B v !A v B = B & (A v 1) v !A = B v !A