Question

The mathematical expression 9 ∈ T means:

A.) 9 union T
B.) 9 intersection T
C.) 9 is an element of T
D.) 9 is not an element of T

Answer 1

It's simple. Check your question & reread the answer. In think about it. It's D

Answer 2

Answer: It should be C) 9 is an element of T

Explanation: