Advertisements
Advertisements
Question
Wherever possible, write the following as a single matrix.
`[(1, 2),(3, 4)] + [(-1, -2),(1, -7)]`
Solution
`[(1, 2),(3, 4)] + [(-1, -2),(1, -7)]`
= `[(1 - 1, 2 - 2),(3 + 1, 4 - 7)]`
= `[(0, 0),(4, -3)]`
APPEARS IN
RELATED QUESTIONS
State, whether the following statement is true or false. If false, give a reason.
If A and B are two matrices of orders 3 × 2 and 2 × 3 respectively; then their sum A + B is possible.
Solve for a, b and c; if `[(a, a - b),(b + c, 0)] = [(3, -1),(2, 0)]`
Wherever possible, write the following as a single matrix.
`[(0, 1, 2),(4, 6, 7)] + [(3, 4),(6, 8)]`
Solve the following minimal assignment problem :
| Machines | Jobs | ||
| I | II | III | |
| M1 | 1 | 4 | 5 |
| M2 | 4 | 2 | 7 |
| M3 | 7 | 8 | 3 |
If A = `[(1,1),(2,2)] , "B" = [(1,2),(3,4)]` then find |AB|.
If a matrix has 4 elements, what are the possible order it can have?
Construct a 2 x 2 matrix whose elements aij are given by aij = 2i – j
Construct a 2 x 2 matrix whose elements aij are given by aij = i.j
Let `"M" xx [(1, 1),(0, 2)]` = [1 2] where M is a matrix.
- State the order of matrix M
- Find the matrix M
Construct a matrix A = [aij]3 × 2 whose element aij is given by
aij = `(("i" - "j")^2)/(5 - "i")`
