Ask
your own question, for FREE!

Mathematics

OpenStudy (anonymous):

givne a matrix A m by n.....there exist matrices C and D such that such that cA = I of n by n and AD = I m by m prove that C=D and m =n

Still Need Help?

Join the QuestionCove community and study together with friends!

OpenStudy (anonymous):

the problem is one of inverse matrices. given \[AA^{-1} = A^{-1}A=I_x\] where x is the dimension of a square matrix, the rest should follow

OpenStudy (anonymous):

Suppose A is an m n matrix and there exist matrices C and D such that CA = In and AD = Im. Prove that m = n and C = D.

OpenStudy (anonymous):

\[X_{mn}Y_{kl}=Z_{ml}\] and \[n=m\] for any matrices X,Y Since \[I_n\] is a square matrix \A_{mn}C_{xy}=I_{n} \quad n=x,\text { and }m=y=n \]

OpenStudy (anonymous):

\[A_{mn}C_{xy}=I_{n} \quad n=x,\text { and }m=y=n \]

OpenStudy (anonymous):

sorry, and \[n=k\]

Can't find your answer?
Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!

Join our real-time social learning platform and learn together with your friends!

Latest Questions

kekeman:
Did Gorbachev Implement policies to negatively restructure society and politics.

1 hour ago
0 Replies
0 Medals

NoodlesAndRiceYT:
i think i found a glitch, sometimes when i log into questioncove, this happens an

1 hour ago
25 Replies
3 Medals

niahmk:
What is the area of Triangle PQR on the grid? A triangle PQR is shown on a grid. The vertex P is on ordered pair 2 and 5, vertex Q is on ordered pair 4 and

9 minutes ago
1 Reply
0 Medals

snoopy007:
(05.05 HC) A candy bar box is in the shape of a triangular prism. The volume of the box is 3,240 cubic centimeters.

2 hours ago
0 Replies
0 Medals