Question

3. How many proper subsets can the following sets have?
(i) A = {a, b, c, d, e, f}
(ii) B = {6, 16, 26, 36, 46, 56, 66}
(iii) C = {x | x = 3a, a < 5, a e N}
(iv) D = {x | x = 63a, 10 < a < 20, a EN
(v) E = {x | x = 3a² + 27, 18 < a < 26, a € N}
please help ​

Answer 1

Answer:

1.64

2.128

3.16

4.512

5.128

Step-by-step explanation:

formula to find subset is 2power n ,

1.the set A has 6 elememts ,so the number of subsets is 64

2.no.of elememts in set B is 7,this 2power 7 is 128