PMS 2019 Past Paper MCQs, Maths MCQs, PPSC Solved Past Papers MCQsThe number of elements in power set {1,2,3) is?A. 5 B. 6 C. 7 D. 8 In mathematics, a solution to an equation that emerges from the process of solving the problem but is not a valid solution to the problem is called?How many subsets does an empty set have?
