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已知二次函数y=f(x)的图象为开口向下的抛物线,且对任意x∈R都有f(1-x)...
已知二次函数y=f(x)的图象为开口向下的抛物线,且对任意x∈R都有f(1-x)=f(1+x).若向量
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=(
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),
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=(
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),则满足不等式f>f(-1)的m的取值范围为
.
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