Question 26
A typical n-set is $A=\{a_1,a_2,a_3,\ldots,a_n\}$, where n is a natural number. How many subsets of A contain the element $a_n$?
Input format: use pi, sqrt(...), ^ for powers, * for multiplication and / for division as needed.
Input format: use pi, sqrt(...), ^ for powers, * for multiplication and / for division as needed.