MATH 223 Lecture 23: Nov 22, 2016

Solve the system in Exercise 8b, on page 37, using inverses. Do you think this was less work than simply reducing the augmented matrix? Explain. +3y + z = 1 2x + 4y + 7z = 2 3x + 10y + 5z = 7

Solve the system in Exercise 8b, on page 37, using inverses. Do you think this was less work than simply reducing the augmented matrix? Explain. X + 3y + z = 1 2x + 4y + 7z = 2 3x + 10y + 5z = 7

Э Determine, h had, dich,of the fallouing systems ions as at leaat one sdlution p asustem of equations has at least one solutian 计ls "consistent", 㠏 is inconsistent.乎there are no solutions (a) 2x +4y =2, (b) 3x + 2y +5z 0, EE 510 Linear algebra Page 1 (a) 2x +4y2, (b) 3x + 2y +5z 0, (d 22, r+y- z-3, 2w + x + 3y + 5z = 1, x+ y+ z=0.