Question 3 e and f are sets of real numbers defined as follows.

Real number are the numbers starting from negative infinity to positive infinity (...-5,-4,-3,-2,-1,0,1,2,3,4,5...). e and f are sets of real number implies that these are two sets consisting of rwal numbers. e={4,54,-5,8,-9} f={5,4,-3,-5,0}