Monday, February 4, 2008

Matrices and Solving Linear Equations

Solving simultaneous linear equations using matrices.


Solve - x + 5y = 4
2x + 5y = - 2

by matrix method.



By posting your answers as comments, write about the following.

What do you need to do to solve the simultaneous equation above using matrices?

Work out the answers to x and y.

Do this by 7 Feb.

25 comments:

Anonymous said...

http://img61537.pictiger.com/images/14062205/%22%20target=%22_blank%22%3E%3Cimg%20src=%22_th.%22%20border=%220%22%20/%3E%3C/a%3E

Anonymous said...

x=-2
y=2/5
using inverse matrix and find the determinant.

Anonymous said...

1)find determinant
2)find inverse of the matrix given
3)mutiplay the determinant with the inverse matrix
4)pre-mutiply the result on both side

Anonymous said...

x=-2
y=2/5

Anonymous said...

x=-2
y=2/5

Using inverse matrix

Anonymous said...

x=-2, y=2/5
Find the determinant and work out the inverse. After which, pre-multiply both sides to find x and y.

Anonymous said...

x=-2 & y=2/5

Find the determinant after which find the inverse matrix then pre-multiply the both side. Hence solve x& y.

Anonymous said...

x= -2
y= 2/5

find determinant, inverse of the matrix, then pre-multiply

Anonymous said...

x= -2
y= 2/5

it is by using inverse matrix and finding the determinant.
(:

Anonymous said...

x= -2
y= 2/5

Didnt see the "Do this by 7 Feb" hope you dont mind.

Anonymous said...

x = -2, y = 2/5

it is by using the inverse matrix and then pre-multiplying both sides.

Anonymous said...

x= -2
y= 2/5
find determinant and find inverse matrix then pre-multiply. Finally solve and find x and y.

Anonymous said...

x= -2
y= 2/5
use inverse matrix and find the determinant then pre multiply on both side

Anonymous said...

x= -2, y= 2/5
use inverse matrix and find the determiant then pre-multiply on both side

Anonymous said...

x= -2
y= 2/5

find determinant then find inverse of the matrix, then pre-multiply

Anonymous said...

x=-2
y=2/5

by using inverse matrix method and finding the determinants

Anonymous said...

x= -2
y= 2/5

Find the Determinant.
Use inverse matrix to pre-multiply both sides.

Anonymous said...

x=-2
y=2/5


determinant==>inverse==>pre-multiply

Anonymous said...

x=-2
y=2/5

it`s by using inverse matrix and find the determinant, then pre-multiply.

Anonymous said...

x=-2
y=2/5

Step 1)Find determinant
Step 2)Find inverse matrix
Step 3)Pre-multiply on both sides
Last but not least, find the x and y.

Anonymous said...

1st, find the inverse then find the determinants and multiply them together

the answer is x=-2 and y=2/5

Anonymous said...

x=-2
y=2/5

use inverse matrix and find determinant.

Anonymous said...

x=-2 y=2/5

find inverse of matrix and the determinant.

Anonymous said...

x=-2
y=2/5
find inverse of matrix and thn fnd the determinant

Anonymous said...

x=-2
y=2/5
find inverse of matrix and
find determinant