规定“*”表示一种运算,且a*b=a一2b/ab,试求3*(4*1/2)的值

2025-06-27 22:05:24
推荐回答(1个)
回答1:

3*(4*2分之1)
=3*[(4-2×1/2)/(4×1/2)]
=3*(3/2)
=(3-2×3/2)/(3×3/2)
=0