初一数学(整式的除法)化简:(2^n+4-2*2^n)/(2*2^n+3)
人气:276 ℃ 时间:2020-06-06 22:42:41
解答
(2^n+4-2*2^n)/(2*2^n+3)
=(2^n+4-2^n+1)/(2^n+4)
=1-1/2³
=1-1/8
=7/8
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