2000017203

Which of the given matrices have the same entry at the position \( (1,2)\)? \[ K=\left (\array{ 1& \sqrt2 & 3 & \sqrt5\cr \sqrt3& 2 & 1 & 5\cr 4& 1 & 1& 0\cr } \right ), \quad L=\left (\array{ 1& \sqrt2 & 3\cr \sqrt3 & 2 & 1\cr 4 & 1& 1\cr \sqrt5 & 5& 0 } \right ), \] \[ M=\left (\array{ \sqrt3& 2 & 1\cr \sqrt3 & 4 & 0 } \right ), \quad N=\left (\array{ 1& \sqrt3 & 4\cr \sqrt3 & 2 & 1 \cr 3 & 1 & 1 \cr \sqrt5 & 5 & 0 } \right ) \]