Question

P = {x|x is a letter of the word EXAMINATION }
I know it is finite set just give me the solution of this equation ​

Answer 1

Let A = {x : 9 < x < 10, x is a natural number} will be a null set because there is NO natural number between numbers 9 and 10. Therefore, A = {} or φ

Let W = {d: d > 8, d is the number of days in a week} will also be a void set because there are only 7 days in a week.