Textbook QuestionIn Exercises 23–30, use expansion by minors to evaluate each determinant. ∣111222−34−5∣\(\begin{vmatrix}\)1 & 1 & 1 \\2 & 2 & 2 \\-3 & 4 & -5\(\end{vmatrix}\)12−312412−5731views
Textbook QuestionIn Exercises 23–30, use expansion by minors to evaluate each determinant. ∣0.5750.5390.513∣\(\begin{vmatrix}\)0.5 & 7 & 5 \\0.5 & 3 & 9 \\0.5 & 1 & 3\(\end{vmatrix}\)0.50.50.5731593693views
Textbook QuestionIn Exercises 31–36, use the alternative method for evaluating third-order determinants on here to evaluate each determinant. ∣−34−55−208−13∣\(\begin{vmatrix}\)-3 & 4 & -5 \\5 & -2 & 0 \\8 & -1 & 3\(\end{vmatrix}\)−3584−2−1−503761views
Textbook QuestionIn Exercises 31–36, use the alternative method for evaluating third-order determinants on here to evaluate each determinant. ∣1561451910∣\(\begin{vmatrix}\)1 & 5 & 6 \\1 & 4 & 5 \\1 & 9 & 10\(\end{vmatrix}\)1115496510737views
Textbook QuestionEvaluate each determinant.∣−1829∣\(\left\)| \(\begin{matrix}\) -1 & 8 \\ 2 & 9 \(\end{matrix}\) \(\right\)| 942views
Textbook QuestionIn Exercises 37–44, use Cramer's Rule to solve each system. {x+y+z=02x−y+z=−1−x+3y−z=−8\(\begin{cases}\)x + y + z = 0 \\2x - y + z = -1 \\-x + 3y - z = -8\(\end{cases}\)⎩⎨⎧x+y+z=02x−y+z=−1−x+3y−z=−8707views
Textbook QuestionEvaluate each determinant.∣x4x2x8x∣\(\begin{vmatrix}\)x & 4x\\ 2x & 8x\(\end{vmatrix}\) 736views
Textbook QuestionIn Exercises 37–44, use Cramer's Rule to solve each system. {4x−5y−6z=−1x−2y−5z=−122x−y=7\(\begin{cases}\)4x - 5y - 6z = -1 \(\x\) - 2y - 5z = -12 \\2x - y = 7\(\end{cases}\)⎩⎨⎧4x−5y−6z=−1x−2y−5z=−122x−y=7900views
