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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 Spring '08
 Brodnick
 Math, Addition, Equations, Multiplication, Matrices, #, Row, elementary row operations

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