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[函数] 存在$y_1-y_2=1$,求$m$的取值范围.

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Tesla35 posted 2025-6-20 16:23 |Read mode
已知二次函数$y=-x^2+2x+3$,函数图象上有两个点$A(x_1,y_1),B(x_2,y_2)$,若$m\leqslant x_1\leqslant m+1,m+2\leqslant x_2\leqslant m+3$时,存在$y_1-y_2=1$,求$m$的取值范围.

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