Question 26
Matrices and DeterminantsEvaluate |2 0 5; 4 6 3; 8 9 1| (determinant written row by row)
- A.−42
- B.102
- C.18
- D.−102
Show the answer and explanation
Answer: D (−102)
Explanation
Expanding along the first row: 2(6 − 27) − 0 + 5(36 − 48) = −42 − 60 = −102.