Question
Mathematics Question on Invertible Matrices
If A and B are invertible matrices then which of the following is not correct ?
A
adjA = |A| A-1
B
det (A-1) = [det (A)]-1
C
(AB)-1 = B-1A-1
D
(A + B)-1 = B-1+ A-1
Answer
(A + B)-1 = B-1+ A-1
Explanation
Solution
The correct answer is () :