Question

Question 13 - of 22 Step 1 of 1 01:41:24 0 Evaluate the determinant of the matrix A = Minimize the required number of computations by carefully choosing a row or 0 0 0 W2 0 0 column to expand along and use the properties of determinants to simplify the process. Keypad Answer Points

Answer 1

- Solution Given that w3 63 w 2 A= و با 0 ws 5ا۔ o ws ws wa 2 با we have to find its determinando Since we know that determinant of an upper triangular matrix is product of diagonal entries. b c d f A equals to a it. If A= e 0 is upper triangular Matrix 0 h k l then determinant A = product of diagonal entries axexhxd Eachd Here Given that eu 3 wi w? wY AP ws w2 is o ws w5 O upper triangular Matrix wa So determinantA= product of diagonal entries =w²x w3x w? x 2 F: 03-1} - XIXwy

= Ixwy - lxwxw co 3 ar T - lylyw = w Thus determinant of = w/ Ans Answer