問題詳情

【題組】6. Suppose A is a set with 21 elements. How many subsets of A can be obtained such that eachsubset has 11 or more elements?
(A) 131072;
(B) 262144;
(C) 524288;
(D) 1048576.

參考答案

答案:[無官方正解]
難度:計算中-1
書單:沒有書單,新增