2.
\((1)\)复数\(z=\left( 1+i \right)\left( 2-i \right)-i\)的共轭复数为____________
\((2)\)一个算法的程序框图如图所示,如果输出\(y\)的值是\(1\),那么输入\(x\)的值是_____________
\((3)\)已知函数\(f\left( x \right)\)是定义在\(R\)上的奇函数,\(f\left( 1 \right)=0\),\(\dfrac{x{f}{{{'}}}\left( x \right)-f\left( x \right)}{{{x}^{2}}} > 0(x > 0)\),则不等式\(xf\left( x \right) > 0\)的解集是______________.
\((4)\)若函数\(f\left( x \right)=ax+{\ln }x-\dfrac{{{x}^{2}}}{x-{\ln }x}\)有三个不同的零点,则实数\(a\)的取值范围是______________