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高考问答
时间:2024/06/01 01:20:36
GL97241634.X
GL97241634.X
GL97241634.X
分解因式 x.x.x.x+16-16x.x
(x*x*x-x*x+x)/(x*x*x+1)+(x*x+x+1)/[(1-x*x)/x)]
(x*x*x-x*x+x)/(x*x*x+1)+(x*x+x+1)/[(1-x*x)/x)]
4x?2x?
cosX=X,?X
x++与++x
解方程式3x*x*x+x*x=2