CBSE Class 12-science Answered
I am confused with the row/column operations on matrices aand determinants. if we are doing row operation on a determinant can we switch to column operation as the next step (if reqd.) in the same question? Can we do the same kind of procedure in a matrix?
Asked by priyadarshini_selvam | 24 May, 2011, 06:53: PM
Expert Answer
Determinant:
The interchange of row and columns does not affect the value of the determinant.
Hence we can use either row or column transformation or both of them in the same problem
Matrix:
A matrix does not have a value. It is an arrangement of numbers in rows and columns, hence the position of an element is very important.
So we cannot use row and column operations randomly.
If you are refering to 'finding inverse by elementary transformations',
then you can use only row transformations for the pre-factor and only column transformations for post factor in the matrix equation.
Answered by | 24 May, 2011, 10:22: PM
Concept Videos
-
Concepts on determinants
Introduction to Determinants. Discuss the value of a 2x2 determinant. -
Concepts on minors and cofactors of determinants
Find minors & cofactors of determinants and hence evaluate the determinants... -
Concepts on ad joint, inverse of matrix
Find ad joint of a matrix and hence calculate the inverse of a matrix. Use ... -
About properties of determinants
Learn the properties of determinants and the effect and use of elementary o... -
Revising properties of determinants
Recap of the properties of determinants. Learn the application of determina...
CBSE 12-science - Maths
Asked by kreetisinghktt | 04 Feb, 2024, 07:50: PM
ANSWERED BY EXPERTCBSE 12-science - Maths
Asked by aaravsingh69706 | 12 Jan, 2024, 12:51: PM
ANSWERED BY EXPERTCBSE 12-science - Maths
Asked by peethanibindusri | 11 Nov, 2023, 05:06: PM
ANSWERED BY EXPERTCBSE 12-science - Maths
Asked by tejaswinimogal12 | 26 Sep, 2023, 08:17: AM
ANSWERED BY EXPERTCBSE 12-science - Maths
Asked by divyanshusinghchauhan58 | 16 May, 2023, 08:45: AM
ANSWERED BY EXPERTCBSE 12-science - Maths
Asked by thatipallysneha | 19 Apr, 2022, 01:20: PM
ANSWERED BY EXPERTCBSE 12-science - Maths
Asked by princesharma1366 | 08 Apr, 2022, 03:28: PM
ANSWERED BY EXPERTCBSE 12-science - Maths
Asked by ars22734957 | 13 Mar, 2022, 08:56: AM
ANSWERED BY EXPERTCBSE 12-science - Maths
Asked by msdismail07 | 15 Jul, 2021, 10:30: AM
ANSWERED BY EXPERT
