行测数学题,求解题思路:0,1,1/4,1/2,(),5/64 A.1/8 B.1/4 C.3/16 D.3/8

问题描述:

行测数学题,求解题思路:0,1,1/4,1/2,(),5/64 A.1/8 B.1/4 C.3/16 D.3/8

通项是[n+(-1)^(n+1)]/2^n,当n=5时候,是3/16,答案是C