Failed to connect to MySQL: Access denied for user 'examnext_online'@'localhost' (using password: YES) Let A=`[[4sec^2 theta,1,0] , [0,3tan^2 theta ,1] , [0,1,2]]` and B=`[[cot^2 theta ,2,0],[1,3cosec^2 theta ,1],[1,1,2]]`.then minimum value of tr.(AB) is (where tr(A) denotes trace of square matrix A)- - Sarthaks eConnect

Let A=`[[4sec^2 theta,1,0] , [0,3tan^2 theta ,1] , [0,1,2]]` and
B=`[[cot^2 theta ,2,0],[1,3cosec^2 theta ,1],[1,1,2]]`.
then minimum value of tr.(AB) is (where tr(A) denotes trace of square matrix A)-

Let A=`[[4sec^2 theta,1,0] , [0,3tan^2 theta ,1] , [0,1,2]]` and

B=`[[cot^2 theta ,2,0],[1,3cosec^2 theta ,1],[1,1,2]]`.

then minimum value of tr.(AB) is (where tr(A) denotes trace of square matrix A)-