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#5c0db62f-82e7-48da-887a-184b0f56bcd9基础fill_compute函数的单调性函数

21.若函数f(x)={x2mx5,x1,mx,x>1f(x)=\left\{{\left.\begin{array}{l}{-{x^2}-mx-5,x\leqslant 1,}\\ {\frac{m}{x},x>1}\end{array}\right.}\right.RR上单调递增,则实数mm的最小值为 ___3-3___.