If R is a relation on A ={1,2,3,4} given by
R={(1,3),(1,4),(3,2),(3,3),(3,4)}, then R-1 is given by
Suppose A Transpose is opposite to values of A matrix...same as this problem
5 is correct use formula P(AuBuC)=p(A) p(B) p(C)-p(A^B)-p(B^C)-p(B^C) p(A^B^C)