Construct a 2x2 matrix A[aij] whose elements are given by
aij = { i - j , if i = j
i + j , if i
Thanks
Raagini
For what value of k, the matrix( 2-k ) 3 is not invertible.
-5 1
Three shopkeepers A, B, C are using polythene, handmade bags (prepared by prisoners), andnewspapers envelope as carry bags. it is found that the shopkeepers A, B, C are using(20,30,40) , (30,40,20,) , (40,20,30) polythene , handmade bags and newspapers envelopesrespectively. The shopkeepers A, B, C spent Rs.250, Rs.220 Rs.200 on these carry bagsrespectively .Find the cost of each carry bags using matrices. Keeping in mind the social environmental conditions, which shopkeeper is better? why?
If the matrix A is both symmetric and skew symmetric, then
A. A is a diagonal matrix
B. A is a zero matrix
C. A is a square matrix
D. None of these
Construct a 2x2 matrix A[aij] whose elements are given by
aij = { i - j , if i = j
i + j , if i
Thanks
Raagini
For what value of k, the matrix( 2-k ) 3 is not invertible.
-5 1
Articles school. x. Y Z
Hand-held fans. 30. 40. 35
Mats. 12. 15. 20
Toys. 70. 55. 75
using matrices , find the funds collected by each school by selling the above articles and the total funds collected . Also write any one value generated by the above situations .
Three shopkeepers A, B, C are using polythene, handmade bags (prepared by prisoners), andnewspapers envelope as carry bags. it is found that the shopkeepers A, B, C are using(20,30,40) , (30,40,20,) , (40,20,30) polythene , handmade bags and newspapers envelopesrespectively. The shopkeepers A, B, C spent Rs.250, Rs.220 Rs.200 on these carry bagsrespectively .Find the cost of each carry bags using matrices. Keeping in mind the social environmental conditions, which shopkeeper is better? why?
If the matrix A is both symmetric and skew symmetric, then
A. A is a diagonal matrix
B. A is a zero matrix
C. A is a square matrix
D. None of these