Option C is undoubtedly correct because:
What about answer B?
Please help with the other questions as well.
I proved B is correct before itself
See this: Determinants doubts
Sorry, didn't see it before. Thanks.
@Mayank_Dixit @Ks_Kaushik @Aakash_Jain
I think AB=BA when A and B are diagonal square matrices.
But answer given is option a plz explain @Bhateri_Devi @Mayank_Dixit
See, all the other properties are in general true for all.
And for non singular matrix it is not necessarily true that they will be square diagonal.
But why are you using diagonal matrix as it is nowhere given in question also option a implies TR(A) =inverse A so it must be true always @Aakash_Jain
Transverse A = Inverse A.. yes that is correct for this option But it does not imply that the option is correct?
But answer given in book is option a &also in question not necessarily is asked
Where I used
Just check for errors if any...
Salute @Silla_Priyadarshni @Mostafijur_Rahaman
Mathematics Department HODs