The Circuit Shown Below, Let Use Nodal Analysis to Find $V _ { 1 }$

Essay

the circuit shown below, let $$\mathrm { I } _ { \mathrm { s } 1 } = 2 \mathrm {~mA} , \mathrm { I } _ { \mathrm { s } 2 } = 3 \mathrm {~mA} , \mathrm { R } _ { 1 } = 2.5 \mathrm { k } \Omega , \mathrm { R } _ { 2 } = 6 \mathrm { k } \Omega , \mathrm { R } _ { 3 } = 4 \mathrm { k } \Omega$$
Use nodal analysis to find $V _ { 1 }$ and $V _ { 2 }$ .