Question 10
How many subsets of $\{1,2,3,4,\ldots,10\}$ are there so that, there will exactly any one element of $\{1,2\}$?
AMO 2027 Grades 8-9 SET 5 - Self-study Question 10
AMO · AMO 2027 Grades 8-9 SET 5 - Self-study
AMO · AMO 2027 Grades 8-9 SET 5 - Self-study