Question

Let X={1,2,3,4,5,6}. Insert appropriate symbol in 9 ________ X.

(a) =

(b) <

(c) ∈

(d) ∉

This question was posed to me by my college professor while I was bunking the class.

This is a very interesting question from Sets and their Representations in section Sets of Mathematics – Class 11

Answer 1

Right option is (d) ∉

To explain: Here, 9 is not an element of set X.

So, 9 does not belongs to set A. 9∉X.