$x_1-2x_2+x_3-x_4 =2 ; x_1+2x_2+2x_4=1; 4x_2-x_3+3x_4=-1$

Lesson 3

# Matrices

#### All Topics

$\text {Is reduced to normal form Also find rank }.$

Equations : $ x_1+2x_2+x_3=3 \; \; ; \; \; x_1+x_2+x_3= \lambda \; \; ; \; \; 3x_1+x_2+3x_3= \lambda^2 $