- **Calculus & Beyond Homework**
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- - **Linear algebra: Determinant**
(*http://www.physicsforums.com/showthread.php?t=438004*)

Linear algebra: Determinant1. The problem statement, all variables and given/known dataEvaluate the following determinant by expressing the matrix in upper triangular form. 2. Relevant equationsrow operations. 3. The attempt at a solutionhttp://yfrog.com/jnscan0001ugj http://img707.imageshack.us/img707/6379/scan0001ug.jpg http://img707.imageshack.us/img707/6379/scan0001ug.jpg I want to know what I did wrong there cause I cant figure it out the calculator shows a different answer. |

Re: Linear algebra: DeterminantIn your 4th (or so) step, you replaced row 2 by 1/2 itself. Replacing a row by a nonzero multiple of itself is one row operation that changes the value of the determinant. The other row operation that does this is swapping two rows.
The correct value of the determinant is -17. |

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