CBSE Class 12-science Answered
sir/mam pls give me best TRICK to FIND INVERSE OF A MATRIX (EXPLAIN)
Asked by | 14 Mar, 2010, 01:27: AM
Expert Answer
The SURE and straightforward method would be by adjoint.
To find inverse of a given matrix A, follow the steps.
Cofactor of an element aij = (-1)i+j x determinant obtained after excluding the ith row and jth column.
1/ Find the cofactors of all the elements.
2/ Replace all the elements in the matrix by their cofactors.
3/ Take the transpose of the matrix, and it's the adjoint of the given matrix A, denoted by adj(A).
4/ Divide adj(A) by determinant of A, and you'll have the inverse of A.
Regards,
Team,
TopperLearning.
Answered by | 14 Mar, 2010, 07:56: AM
Concept Videos
CBSE 12-science - Maths
Asked by sdmbotch1123 | 18 Jan, 2023, 11:01: PM
ANSWERED BY EXPERT
CBSE 12-science - Maths
If |𝑎⃗| = 3 and −1 ≤ 𝑘 ≤ 2, then |𝑘𝑎⃗| lies in the interval
(a) [0,6] (b) [−3,6] (c) [3,6] (d) [1,2]
Asked by mohdtayyab682 | 18 Jan, 2023, 10:34: PM
ANSWERED BY EXPERT
CBSE 12-science - Maths
Asked by durgaprasaddurgaprasad174 | 01 Jul, 2022, 05:05: PM
ANSWERED BY EXPERT
CBSE 12-science - Maths
Asked by sujaychandramouli | 24 May, 2022, 10:46: AM
ANSWERED BY EXPERT
CBSE 12-science - Maths
Asked by abhimeena1011 | 18 Jan, 2022, 10:43: AM
ANSWERED BY EXPERT
CBSE 12-science - Maths
Asked by gurupadam3101985 | 11 Apr, 2020, 10:06: AM
ANSWERED BY EXPERT
CBSE 12-science - Maths
Asked by lovemaan5500 | 07 Feb, 2020, 09:49: AM
ANSWERED BY EXPERT
CBSE 12-science - Maths
Asked by lovemaan5500 | 07 Feb, 2020, 09:49: AM
ANSWERED BY EXPERT
CBSE 12-science - Maths
Asked by lovemaan5500 | 16 Dec, 2019, 09:34: PM
ANSWERED BY EXPERT
CBSE 12-science - Maths
Asked by Vivek.d8765 | 29 Oct, 2019, 10:14: PM
ANSWERED BY EXPERT