If `A=[(2,3),(4,-5)], B=[(8,9),(6,7)],` find

If A= {:[(6,7),(8,9)] and B = {:[(3,2),(7,5)] , find (AB)^-1

If A = {1,2,3,4,5,6} ,B = {5,6,7,8,9} then find A-B and B-A.

If A={1,2,3,4,5,6,7,8} and B={1,3,4,6,7,8,9} then

Let U={1,2,3,4,5,6,7,8,9}, A={1,2,3,4}, B=[2,4,6,8], C=[3,4,5,6]. Find: ((A')')'

Find the sum in the nth group of sequence, (I 1,(2,3),(4,5,6,7),(8,9,………15),……………….. (ii) (1),(2,3,4),(5,6,7,8,9),…………..

A={1,2,3,4,5,6,7,8,9,10}, B={2,3,5,7}. Find A cap B

A={1,2,3,4,5,6,7,8,9,10}, B={2,3,5,7}. Find A cap B