
已知函数f(x)=(x-2)²,x属于[-1,3],求函数f(x+1)的单调递减区间
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x属于[-1,3]
则1-<=x+1<=3
解得-2<=x<=2
f(x+1)=(x+1-2)²=(x-1)² (-2<=x<=2)
f(x)函数的递减区间为[-2,-1]
则1-<=x+1<=3
解得-2<=x<=2
f(x+1)=(x+1-2)²=(x-1)² (-2<=x<=2)
f(x)函数的递减区间为[-2,-1]
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