Advertisements
Advertisements
Question
Find x and y from the given equations:
`[(-8, x)] + [(y, -2)] = [(-3, 2)]`
Advertisements
Solution
`[(-8, x)] + [(y, -2)] = [(-3, 2)]`
`=> [(-8 + y, x - 2)] = [(-3, 2)]`
Equation the corresponding elements, we get
–8 + y = –3 `=>` y = –3 + 8 = 5
And x – 2 = 2 `=>` x = 2 + 2 = 4
Thus, we get, x = 4 and y = 5.
RELATED QUESTIONS
If `A = [(2),(5)], B = [(1),(4)]` and `C = [(6),(-2)]`, find B + C
Wherever possible, write the following as a single matrix.
`[(2, 3, 4),(5, 6, 7)] - [(0, 2, 3),(6, -1, 0)]`
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
If A = `|(5,"r"),("p",7)|` , c and if A + B = (9,7),(5,8) , find the values of p,q,r and s.
Evaluate the following :
`|(2,1) ,(3,2),(1 , 1)| |(1 , -2 , 1),(2 , 1 , 3)|`
If `"A" = [(1,2,-3),(5,4,0)] , "B" = [(1,4,3),(-2,5,0)]`, then find 2A + 3B.
If A = `[(1,1),(2,2)] , "B" = [(1,2),(3,4)]` then find |AB|.
If A = `[(1,0,0),(2,1,0),(3,3,1)]` then find A-1 by using elementary transformation .
`[(2 ,- 4),(0 ,0),(1 , 7)]`
If a matrix has 4 elements, what are the possible order it can have?
