10.
已知点\(A(x_{1},f(x_{1}))\),\(B(x_{2},f(x_{2}))\)是函数\(f(x)=2\sin (ωx+φ)(ω > 0,- \dfrac {π}{2} < φ < 0)\)图象上的任意两点,且角\(φ\)的终边经过点\(P(1,- \sqrt {3})\),若\(|f(x_{1})-f(x_{2})|=4\)时,\(|x_{1}-x_{2}|\)的最小值为\( \dfrac {π}{3}\)
\((1)\)求函数\(f(x)\)的解析式;
\((2)\)若方程\(3[f(x)]^{2}-f(x)+m=0\)在\(x∈( \dfrac {π}{9}, \dfrac {4π}{9})\)内有两个不同的解,求实数\(m\)的取值范围.