- Tardigrade
- Question
- Mathematics
- Let A and B are 3× 3 matrices with real number entries, where A is symmetric, B is skew-symmetric and (A + B)(A - B)=(A - B)(A + B) . If (A B)T=(- 1)kAB , then the sum of all possible integral value of k in [2 , 10] is equal to (where AT represent transpose of matrix A )
Q. Let and are matrices with real number entries, where is symmetric, is skew-symmetric and . If , then the sum of all possible integral value of in is equal to (where represent transpose of matrix )
Solution: