Stitz-Zeager_College_Algebra_e-book

14 enables us to now factor x2 2 x 2 x 2 hence 8x 8x

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 8 1 0 3 3 1 2 1 3 3 0 1 −5 0 0 13 3 1 0 0 1 3 2 3 2 1 1 100 1 3 3 300 Replace R1 0 1 0 − − − − 0 −1 5 0 1 0 − − −→ 1 with 3 R1 2 1 4001 001 1 1 2 1 1 300 3 3 300 Replace R3 with 5 0 1 0 − − − − − → 0 −1 0 1 0 −−−−− −2R1 + R3 1 8 2 001 0 3 3 −3 0 1 1 1 2 1 1 0 0 300 3 3 3 Replace R2 −− − −→ 0 1 −5 010 0 −1 0 −−−− with (−1)R2 8 1 0 0 1 −2 0 1 −2 3 3 3 3 1 1 2 1 0 0 1 0 3 3 3 3 Replace R3 with 0 −1 0 −− − − −→ 0 1 −5 0 −1 −−−−− − 1 R2 + R3 2 1 3 −2 0 1 0 0 13 − 3 3 3 3 1 1 2 1 0 0 1 0 3 3 3 3 Replace R3 0 −1 0 −− − − 0 0 −1 1 −5 − − −→ 3 with 13 R3 1 2 1 −2 0 0 1 − 13 13 1 3 3 1 3 0 0 −1 1 −5 2 0 1 − 13 1 13 Replace R1 with 1 0 − 2 R3 + R1 3 −− − − − −→ 0 0 −−−−−− 3 Replace R2 with 0 13 5R3 + R2 1 3 0 10 01 17 39 10 − 13 2 − 13 0 0 1 0 0 3 13 2 − 39 2 − 13 8 − 13 15 13 3 13 1 13 8.4 Systems of Linear Equations: Matrix Inverses 1 0 0 1 3 0 10 01 17 39 10 − 13 2 − 13 We find A−1 = 2 − 39 2 −...
View Full Document

This note was uploaded on 05/03/2013 for the course MATH Algebra taught by Professor Wong during the Fall '13 term at Chicago Academy High School.

Ask a homework question - tutors are online