Advertisements
Advertisements
प्रश्न
If A = `[(0, 2),(5, -2)]`, B = `[(1, -1),(3, 2)]` and I is a unit matrix of order 2 × 2, find IB
उत्तर
IB = `[(1, 0),(0, 1)] [(1, -1),(3, 2)]`
= `[(1 xx 1 + 0 xx 3, 1 xx (-1) + 0 xx 2),(0 xx 1 + 1 xx 3, 0 xx (-1) + 1 xx 2)]`
= `[(1 + 0, -1 + 0),(0 + 3, 0 + 2)]`
= `[(1, -1),(3, 2)] = B`
APPEARS IN
संबंधित प्रश्न
Given A = `[(2, -6),(2, 0)]`, B = `[(-3, 2),(4, 0)]` and C = `[(4, 0),(0, 2)]`. Find the matrix X such that A + 2X = 2B + C.
Write the additive inverse of matrices A, B and C:
Where `A = [(6, -5)]; B = [(-2, 0),(4, -1)]` and `C = [(-7), (4)]`.
Evaluate `2[(-1, 0),(2, -3)] + [(3,3),(5,0)]`
Evaluate:
`6[(3),(-2)] -2[(-8),(1)]`
Given A = `[(-3, 6),(0, -9)]` and At is its transpose matrix. Find 2A + 3At
Given A = `[(-3, 6),(0, -9)]` and At is its transpose matrix. Find 2At – 3A
Let A be a 2 x 2 matrix and let I be an identity matrix of the order 2 x 2. Prove that AI = IA = A.
If A = `[(1, 4),(2, 3)]` and B = `[(1, 2),(3, 1)]` Compute 3A + 4B
If `2[(3, 4),(5, x)] + [(1, y),(0, 1)] = [(z, 0),(10, 5)]` Find the values of x and y
Determine the matrices A and B when A + 2B = `[(1, 2),(6, -3)] and 2"A" - "B" = [(2, -1),(2, -1)]`
