Advertisements
Advertisements
Question
The inverse matrix of `((3,1),(5,2))` is
Options
`((2,-1),(-5,3))`
`((-2,5),(1,-3))`
`((3,-1),(-5,-3))`
`((-3,5),(1,-2))`
Solution
`((2,-1),(-5,3))`
APPEARS IN
RELATED QUESTIONS
Find the adjoint of the following matrix.
`[(2,-3),(3,5)]`
Find the inverse of the following matrix by the adjoint method.
`[(2,-2),(4,3)]`
State whether the following is True or False :
A(adj. A) = |A| I, where I is the unit matrix.
Check whether the following matrices are invertible or not:
`[(1, 2, 3),(2, 4, 5),(2, 4, 6)]`
Find the adjoint of matrix A = `[(6, 5),(3, 4)]`
If the inverse of the matrix A = `[(1, 1, -1), (1, -2, 1), (2, -1, -3)]` is `1/9 [(7, 4, -1), (5, -1, -2), (3, 3, a)]`, then a is equal to ______
Matrix A = `[(1, 2, 3),(1, 1, 5),(2, 4, 7)]` then the value of a31 A31 + a32 A32 + a33 A33 is ______.
If the inverse of the matrix `[(α, 14, -1),(2, 3, 1),(6, 2, 3)]` does not exist, then the value of α is ______.
If matrix A = `[(1, 2),(4, 3)]`, such that AX = I, then X is equal to ______.
if `A = [(2,-1,1),(-1,2,-1),(1,-1,2)]` then find A−1 by the adjoint method.