Unformatted text preview: x 1 , x 2 , x 3 , x 4 ) = . . . . x 12 x 2 + 3 x 4 = 2 x 3x 4 =1 free variables: x 2 = a, x 4 = b. use of equations: x 1 = 2 + 2 x 23 x 4 = 2 + 2 a3 b, x 3 =1 + x 4 =1 + b, vector form (in R 4 ): ( x 1 , x 2 , x 3 , x 4 ) = (2 + 2 a3 b, a,1 + b, b )....
View
Full Document
 Fall '08
 zhang
 Equations, Row echelon form, soln

Click to edit the document details