4. For the expression below you are allowed to put in as many or as few brackets as you like. What
are the least and greatest numbers you could get as a result?
1 - 2 x 3-4
5-6
Please show working out.

Given a = {(1, , 5)(6,4)}, b = {(2,0)(4, ,5)(0, 0)) and c = {(1, 1)(0, 2)(0, 3)(0, ,5)}, answer the following multiple choice question: from the list of sets a, b, and c, state the domain of set b. domain of set b: {0, 6,5} domain of set b: {2, 4,-4, 0} set b does not have a domain