Advertisements
Advertisements
Question
Evaluate if possible `[(6, 4),(3, -1)][(-1),(3)]`
Solution
`[(6, 4),(3, -1)][(-1),(3)]`
= `[(6 xx (-1) + 4 xx 3),(3 xx (-1) + (-1)(3))]`
= `[(-6 + 12),(-3 - 3)]`
= `[(6),(-6)]`
APPEARS IN
RELATED QUESTIONS
Let `A = [(2,1),(0,-2)], B = [(4,1),(-3,-2)] and C = [(-3,2),(-1,4)]`. Find `A^2 + AC - 5B`
Find x and y if `3[(4, x)] + 2[(y, -3)] = [(10, 0)]`
If A = `[(0, 2),(5, -2)]`, B = `[(1, -1),(3, 2)]` and I is a unit matrix of order 2 × 2, find B2A
If A = `[(1, 4),(2, 1)]`, B = `[(-3, 2),(4, 0)]` and C = `[(1, 0),(0, 2)]`, simplify : A2 + BC.
If A = `|(15,7),(13,8)|` and B = `|(16 , 12),(27,11)|` , find matrix X such that A + X
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.
A = `[(1, 2),(-2, 3)]` and B = `[(-2, -1),(1, 2)], "C" [(0, 3),(2, -1)]`Find A + 2B – 3C
If A = `[(2, a),(-3, 5)] and "B" = [(-2, 3),(7, b)], "C" = [(c, 9),(-1, -11)]` and 5A + 2B = C, find the values of a,b,c
If A = `[(1, 2),(-3, 4)], "B" = [(0, 1),(-2, 5)] and "C" = [(-2, 0),(-1, 1)]` find A(4B – 3C)
If A = `[(1, 0),(1, 1)]`, B = `[(0, 1),(1, 0)]` and C = `[(1, 1),(0, 0)]`, the matrix A2 + 2B – 3C is ______.