- $ \\\left[ {1; + \\\infty } \\\right)\\\backslash \\\left\\\{ 4 \\\right\\\}$.
- $ \\\left( {1; + \\\infty } \\\right)\\\backslash \\\left\\\{ 4 \\\right\\\}$.
- $ \\\left( { - 4; + \\\infty } \\\right)$.
- $ \\\left[ {1; + \\\infty } \\\right)$.