3.
\((1)\)已知幂函数图像过点\((\dfrac{1}{2},\dfrac{\sqrt{{2}}}{{2}})\),则\(f\left( 2 \right)=\)________.
\((2)\)已知集合\(A=\{1,2,m\}\)与集合\(B=\{4,7,13\}\),若\(f:\ x\to y=3x+1\)是从\(A\)到\(B\)的映射,则\(m\)的值为 \(\_\).
\((3)\)若函数\(f(x)=a+\dfrac{2}{1+{{2}^{-x}}}\)是奇函数,则实数\(a=\)________.
\((4)\)在数列\(\{{{a}_{n}}\}\)
中,\({{a}_{1}}=1\)
,\({{a}_{n}}={{a}_{n-1}}+n\)
,\(n\geqslant 2\)
.为计算这个数列前\(5\)项的和,现给出该问题算法的程序框图\((\)如图所示\()\),则图中判断框\((1)\)处应 填_______.
![](https://www.ebk.net.cn/tikuimages/2/2018/600/shoutiniao75/1daa09fc6e87d72fa433a018b1af0448.png)
\((5)\)复数\(\dfrac{1+i}{{{i}^{3}}}(i\)是虚数单位\()\)在复平面上对应的点位于第___________象限.