Check sibling questions
Class 12
Solutions of Sample Papers and Past Year Papers - for Class 12 Boards

Check whether (l + m + n) is a factor of the determinant |(l + m) (m + n) (n + l) n l m 2 2 2| or not. Give Reason

Check whether (l + m + n) is a factor of determinant |(l + m) (m + n)

Question 16 - CBSE Class 12 Sample Paper for 2020 Boards - Part 2

Now learn Economics at Teachoo for Class 12


Transcript

Question 16 Check whether (l + m + n) is a factor of the determinant |(l + m) (m + n) (n + l) n l m 2 2 2| or not. Give Reason | (l + m n 2 m + n l 2 n + l m 2 )| Applying 𝑅1β†’ 𝑅 1 + 𝑅2 | (l + m + n n 2 m + n + l l 2 n + l + m m 2 )| Taking (𝑙+π‘š+𝑛) common from 𝑅_1 (l + m + n) | 1 n 2 1 l 2 1 m 2 ] Since (𝑙+π‘š+𝑛) is multiplied outside, it means that is a factor of the determinant

Davneet Singh's photo - Teacher, Engineer, Marketer

Made by

Davneet Singh

Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths and Science at Teachoo.