Jawabanmu

2014-02-10T22:11:54+07:00
A. -p∧-q = S∧B = S
b. (r∧-q) ∨-r =  (B∧B)∨S = B∨S = B
c. (p∧-r) ⇒q = B∧S⇒B = S⇒B = B