题型:填空题 题类:其他 难易度:难
年份:2018
\((1)\)将\(5\)位志愿者分到世博会的\(4\)个不同场馆服务,每位志愿者去一个场馆,每个场馆至少安排一位志愿者,则不同的安排方案有________种.
\((2)\)一只蚂蚁位于数轴\(x=0\)处,这只蚂蚁每隔一秒钟向左或向右移动一个单位,设它向右移动的概率为\( \dfrac{2}{3}\),向左移动的概率为\( \dfrac{1}{3}\),则\(3\)秒后,这只蚂蚁在\(x=1\)处的概率为_________.
\((3){\left(x+1\right)}^{3}+{\left(x-2\right)}^{8}={a}_{0}+{a}_{1}\left(x-1\right)+{a}_{2}{\left(x-1\right)}^{2}+⋯+{a}_{8}{\left(x-1\right)}^{8} \),则\({{a}_{2}}=\)_________.
\((4)\)若对\(∀{x}_{1}∈(0,2] ,∃{x}_{2}∈[1,2] \),使\(4{{x}_{1}}\ln {{x}_{1}}-x_{1}^{2}+3+4{{x}_{1}}x_{2}^{2}+8a{{x}_{1}}{{x}_{2}}-18{{x}_{1}}\geqslant 0\)成立,则实数\(a \)的取值范围是____________.
题型:填空题 题类:其他 难易度:难
年份:2018
\((1)\)设抛物线\(y^{2}=2px(p > 0)\)的焦点为\(F\),准线为\(l.\)过焦点的直线分别交抛物线于\(A\),\(B\)两点,过\(A\),\(B\)分别作\(l\)的垂线,垂足为\(C\),\(D.\)若\(|AF|=2|BF|\),且\(\triangle CDF\)的面积为\(\sqrt{2}\),则\(p\)的值为________.
\((2)\)已知函数\(f(x)\)为偶函数,当\(x\geqslant 0\)时,\(f(x)=e^{x}+x\),则曲线\(y=f(x)\)在点\((-1,f(-1))\)处的切线斜率为________.