3*(4*1/2)
=3*(4-1)/2
=3*3/2
=(3-3)/9/2
=0
规定‘’*‘’表示一种运算,且A*B=A-2B/AB,求3*(4*1/2)的值.
规定‘’*‘’表示一种运算,且A*B=A-2B/AB,求3*(4*1/2)的值.
采纳后再加10,说到做到.
采纳后再加10,说到做到.
数学人气:631 ℃时间:2020-03-28 15:41:43
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