0 votes 0 votes $M$ is a square matrix of order $’n’$ and its determinant value is $5.$ If all the elements of $M$ are multiplied by $2,$ its determinant value becomes $40.$ The value of $’n’$ is $2$ $3$ $5$ $4$ Linear Algebra nielit2017oct-assistanta-it linear-algebra matrix determinant + – admin asked Apr 1, 2020 • reopened Jun 25, 2022 by Lakshman Bhaiya admin 593 views answer comment Share Follow See 1 comment See all 1 1 comment reply Lakshman Bhaiya commented Jun 25, 2022 reply Follow Share https://gateoverflow.in/336923/Nielit-2017-oct-scientific-assistant-a-cs-section-c-9 0 votes 0 votes Please log in or register to add a comment.
5 votes 5 votes let |A|=5 and n*n matrix after multiply by each term the determinent become 40 means 2^n*|A|=40 2^n*5=40 2^n=8 2^n=2^3 n=3 |A| IS 3*3 MATRIX Mohit Kumar 6 answered May 3, 2020 Mohit Kumar 6 comment Share Follow See all 0 reply Please log in or register to add a comment.