Question

Problem 12 In Exercises 1 - 2 row reduce the given matrix to reduced echelon form by hand and determine its rank. 1 1 2 1 6 ) $2.4, Exercise 1. A = 3 6 1 14 1 1 2 2 8

Answer 1

Giuen matrix si 2 1.62 1 3 6 1 141 LI 2 2 8] R2 ~ R2 -3R, R3 R3-R, sia16 Too-2 -4 R, R, -R3, R ~ R₂ +2 R3 Too 12 R2(-) B3 si 2 o 47 Too 121 Loooo This is an reduced row echelon form Kank (A) = no. of nan zero rows an reduced row echelon form ranc (A) = 2