8.
\((1)\)计算:\(\int{\begin{matrix} & 1 \\ & 0 \\ \end{matrix}}(\sqrt{1-{{x}^{2}}}+{{e}^{x}})dx=\)________.
\((2)\)由数字\(0\)、\(1\)、\(2\)、\(3\)、\(4\)、组成无重复数字的五位偶数数有\(_____\)个
\((3)\)对于实数\(x\),\([x]\)表示不超过\(x\)的最大整数,观察下列等式:
\([\sqrt{1}]+[\sqrt{2}]+[\sqrt{3}]=3\)
\([\sqrt{4}]+[\sqrt{5}]+[\sqrt{6}]+[\sqrt{7}]+[\sqrt{8}]=10\)
\([\sqrt{9}]+[\sqrt{10}]+[\sqrt{11}]+[\sqrt{12}]+[\sqrt{13}]+[\sqrt{14}]+[\sqrt{15}]=21\)
\(……\) 按照此规律,第\(n\)个等式为________________.
\((4)\)设函数\(f\left( x \right)={{x}^{3}}-2e{{x}^{2}}+mx-\ln x\),记\(g\left( x \right)=\dfrac{f\left( x \right)}{x}\),若函数\(g\left( x \right)\)至少存在一个零点,则实数\(m\)的取值范围是_____________.