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函数f(x)=2sin(ωx+),其中ω>0.若x1,x2是方程f(x)=2的两个不同的实数根,且|x1﹣x2|的最小值为π.则当x∈[0,]时,f(x)的最小值为 .
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高三下学期数学《》真题及答案
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f(x)在区间[-2π,0]上是增函数
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函数fx=sinωx+φx∈R.ω>0|φ|<的部分图象如图所示如果x1x2∈且fx1=fx2则fx
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一个关系模式为YX1X2X3X4假定该关系存在如下函数依赖X1x2→X3X2→X4则该关系的码为
X1
X2
(X1,X2)
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设x1x2为y=fx的定义域内的任意两个变量有以下几个命题①x1-x2[fx1-fx2]>0②x1-
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