Question

If a= {3, 5, 7, 9} then is it true or false that 13 e c

Answer 1

Given :

`\begin{gathered} A=\mleft\lbrace3,5,7,9\mright\rbrace \\ B=\mleft\lbrace2,4,6,8,10\mright\rbrace \\ C=\mleft\lbrace12,14,18,20,24\mright\rbrace \\ D=\mleft\lbrace21,26,31,36\mright\rbrace \end{gathered}`

So, according to the given data, we will check the options:

(i) 13 ∈ C : False because 13 is not one of the numbers of the group C

(ii) 6 ∉ A : True because 6 is not one of the numbers of the group A

(iii) 9 ∉ A : False because 9 is one of the numbers of the group A

(iv) 24 ∈ C : True because 24 is one of the numbers of the group C