Provide solution for rd sharma math class class 12 chapter Algebra of matrices exercise 4.3 question 32
Answer: Hence, proved
Hint: Matrix multiplication is only possible, when the number of columns of first matrix is equal to the number of rows of second matrix.
I is an identity matrix. so,
To show that
Now, we will find the matrix for , we get
Now, we will find the matrix for 12A, we get
So, substituting corresponding values from equation i & ii in
Hence, matrix A is the root of the given equation.