DE5spring08

DE5spring08 - Practice Problems MTH 2201 3/20/2008 1....

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Practice Problems MTH 2201 3/20/2008 1. Suppose that the augmented matrix for a system of linear equations has been reduced by row operations to the given reduced row echelon form. Solve the system. Assume that the variables are named x 1 , x 2 , ..., from left to right. ( i ) 1 0 0 - 3 0 1 0 0 0 0 1 7 ( ii ) 1 0 0 - 7 8 0 1 0 3 2 0 0 1 1 - 5 ( iii ) h 1 2 0 2 - 1 3 i 2. Suppose that the augmented matrix for a system of linear equations has been reduced by row operations to the given row echelon form. Solve the system by reducing the matrix to reduced row echelon form. Assume that the variables are named x 1 , x 2 , ..., from left to right. ( i ) 1 - 3 4 7 0 1 1 2 0 0 1 5 ( ii ) 1 7 - 2 0 - 8 - 3 0 0 1 1 6 5 0 0 0 1 3 9 0 0 0 0 0 0 3. Solve the linear system by Gauss- Jordan elimination: (i) x 1 + x 2 +2 x 3 = 8 - x 1 - 2 x 2 +3 x 3 = 1 3 x 1 - 7 x 2 +4 x 3 = 10 (ii) 3 x 1 + 2 x 2 - x 3 = - 15 5 x 1
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 2

DE5spring08 - Practice Problems MTH 2201 3/20/2008 1....

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online