- $ {\\\left( {x + 1} \\\right)^2} + {\\\left( {y - 2} \\\right)^2} + {\\\left( {z + 1} \\\right)^2} = 9$.
- $ {\\\left( {x + 1} \\\right)^2} + {\\\left( {y - 2} \\\right)^2} + {\\\left( {z - 1} \\\right)^2} = 3$.
- $ {\\\left( {x + 1} \\\right)^2} + {\\\left( {y - 2} \\\right)^2} + {\\\left( {z - 1} \\\right)^2} = 9$.
- $ {\\\left( {x + 1} \\\right)^2} + {\\\left( {y - 2} \\\right)^2} + {\\\left( {z + 1} \\\right)^2} = 3$.