5．
\((1)\)
\(i\)是虚数单位，\(( \dfrac{ \sqrt{2}}{1-i} \)\()\)\(2 018\)\(+\)\(( \dfrac{1+i}{1-i} \)\()\)\(6\)\(=\)________．\((2)\)若\(f(x)=x\)
\(3\)\(+ax\)
\(2\)\(+bx+a\)
\(2\)在\(x=1\)处有极值\(10\)，则\(a+b=\)________．
\((3).\)曲线\(f(x)=\ln x- \dfrac{2^{x}}{\ln 2}\)在\(x=1\)处的切线方程为
\((4)\)已知\(f{{{'}}}\left( x \right)\)是函数\(f\left( x \right)\)的导函数，且对任意的实数\(x\)都有\(f{{{'}}}\left( x \right)={{e}^{x}}\left( 2x+3 \right)+f\left( x \right)(e\)是自然对数的底数\()\)，\(f\left( 0 \right)=1\)，若不等式\(f\left( x \right)-k < 0\)的解集中恰有两个整数，则实数\(k\)的取值范围是______