Math 70 Assignment 10-23-09

Math 70 Assignment 10-23-09 - y = 7 5. x " y +...

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

View Full Document Right Arrow Icon
Math 70 Assignment 9-24-09 First, rewrite the system of equations using matrix multiplications. Then use inverse matrices to solve the following. Use row operations to find inverse matrices. 1. x " y = " 9 2 x + 6 y = 11 x " y = 9 2 x + 6 y = 1 2. 2 x " 3 y = 9 3 x " 2 y = " 1 2 x " 3 y = 9 3 x " 2 y = 21 3. 3 x + y = 12 x + 5 y = 13 3 x + y = 2 x + 5 y = 3 4. 3 x " 7 y = 2 4 x + 5 y = 3 3 x " 7 y = 9 4 x + 5
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: y = 7 5. x " y + z = 3 x " 7 y = 2 2 y " z = " 4 x " y + z = " 1 3 x " 7 y = " 2 2 y " z = " 3 6. x + 2 y + z = x " y + 7 y = 2 x + y " z = " 4 x + 2 y + z = 10 x " y + 7 y = 22 x + y " z = " 44...
View Full Document

This note was uploaded on 09/08/2010 for the course MATH 70 at San Jose State University .

Ask a homework question - tutors are online