2 votes 2 votes What is the value of the given determinant ? Linear Algebra linear-algebra test-series determinant + – LRU asked Nov 22, 2021 LRU 761 views answer comment Share Follow See all 8 Comments See all 8 8 Comments reply Show 5 previous comments ankit3009 commented Nov 30, 2021 reply Follow Share Yes correct @anshuman66. 0 votes 0 votes ankitgupta.1729 commented Dec 1, 2021 reply Follow Share @ankit3009, determinant is a number associated with square matrices. Since, $3 \times \det( \frac{1}{4} A )^{−1}$ is a value, not a square matrix, so you can’t find determinant of it. 4 votes 4 votes ankit3009 commented Dec 1, 2021 reply Follow Share Understood Sir. Thank you :) 1 votes 1 votes Please log in or register to add a comment.
1 votes 1 votes det(3(1/4A)-1) = det(3(1/4)-1A-1) = det(3.4A-1) = det(12 A-1) = 123 * |A-1| = 123 * 1/|A| = 123 * 1/(-2) =-864 Psy Duck answered Jul 20, 2022 Psy Duck comment Share Follow See all 0 reply Please log in or register to add a comment.