已知a与2b互为倒数,-c与(d/2)互为相反数,/x/=4,求4ab-2c+d+(x/4)的值.

问题描述:

已知a与2b互为倒数,-c与(d/2)互为相反数,/x/=4,求4ab-2c+d+(x/4)的值.