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Unformatted text preview: *Writing a Type 2 row operation (for a 2equation system): a. Write the row to be changed first, and the row containing the pivot second b. Mismatch: multiply R2 by the absolute value of the pivot in R1, and multiply R1 by the absolute value of the entry below the pivot in R2 c. If the entries in the pivot column have opposite signs , add ; if they have the s ame sign , s ubtract 5. Simplify if at any time a row can be reduced, do it 6. In R2, the first nonzero entry is the new pivot clear the new pivot column 7. Change each pivot to a 1 with a Type 1 row operation, and rewrite the matrix as a system of equations Matrices on the calculator : 2 nd 1x or MATRIX EDIT # of rows # of columns type in entries, pressing ENTER after each 2 nd MODE 2 nd 1x or MATRIX MATH B: rref( 2 nd 1x or MATRIX choose the matrix you entered from the names list ENTER...
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This note was uploaded on 04/07/2008 for the course MAT 120 taught by Professor Brodnick during the Spring '08 term at Illinois State.
 Spring '08
 Brodnick
 Math, Equations, Matrices

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