Finite Math Help

[Black Yaris]

how about Solving a system of equations by using the inverse of the coefficient matrix.... I am soooo lost I do not understand the gauss-jordan method at all

[static808]

Originally Posted by Black Yaris

how about Solving a system of equations by using the inverse of the coefficient matrix.... I am soooo lost I do not understand the gauss-jordan method at all

solving a system using inverse matrices is very effective, especially if you are very adept at finding determinants AND gaussian elimination is something that you just cant seem to master. however, for systems beyond 3x3, there is no formula for finding inverse matrices, meaning you'll have to use gaussian elimination to actually FIND the inverse matrix. meaning you are once again using a method you were trying to AVOID. if you are sure that your test will only have systems of 3x3 or smaller, then the inverse matrix method of solving systems will be very effective (i know, since i primarily used that method as well!). good luck!

--B