Advertisements
Advertisements
प्रश्न
Evaluate the following :
`|(0 , 1),(-1 , 2),(-2 , 0)| |(0 , -4 , 0),(3 , 0 , -1)|`
Advertisements
उत्तर
`|(0 , 1),(-1 , 2),(-2 , 0)|_(3 xx 2) |(0 , -4 , 0),(3 , 0 , -1)|_(2 xx 3)`
`= |(0+3 , 0+0 , 0-1),(0+6 , 4 + 0,0 - 2),(0+0 , 8+0 , 0+0)|`
`= |(3, 0 , -1),(6 , 4 , -2),(0 , 8 , 0)|_(3 xx 3)`
APPEARS IN
संबंधित प्रश्न
If A = `[(8, -3)]` and B = `[(4, -5)]`; find A + B
State, with reason, whether the following is true or false. A, B and C are matrices of order 2 × 2.
(A – B) . C = A . C – B . C
Solve the following system of linear equation using matrix method:
`1/x + 1/y +1/z = 9`
`2/x + 5/y+7/z = 52`
`2/x+1/y-1/z=0`
Classify the following matrix :
`|(11 , 3 , 0),(21 , 8 , 4),(15,5,2)|`
If B = `|(15 , 13),(11,12),(10,17)|` , find the transpose of matrix Band If possible find the sum of the two matrices. If not possible state the reason.
If A = `|("p","q"),(8,5)|` , B = `|(3"p",5"q"),(2"q" , 7)|` and if A + B = `|(12,6),(2"r" , 3"s")|` , find the values of p,q,r and s.
If A = `|(1,3),(3,2)|` and B = `|(-2 , 3),(-4 , 1)|` find BA
If P = `|(1 , 2),(2 , 1)|` and Q = `|(2 , 1),(1 , 2)|` find P (QP).
Solve the following minimal assignment problem :
| Machines | Jobs | ||
| I | II | III | |
| M1 | 1 | 4 | 5 |
| M2 | 4 | 2 | 7 |
| M3 | 7 | 8 | 3 |
`[(2 ,- 4),(0 ,0),(1 , 7)]`
