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(-2)^2+100÷(-2)^3+(-5)^2+(0.25)^(2007)×4^(2006)要过程
人气:344 ℃ 时间:2020-06-26 14:42:33
解答
(-2)^2+100÷(-2)^3÷(-5)^2+(0.25)^2007×4^2006
=4+100÷(-8)÷25+(0.25x4)^2006X0.25
=4-1/2+0.25
=4-1/4
=15/4
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