[" 4.If "A=diag(2,-5" 9) ",B=diag(1,1,-4)" an "],[C=diag(-6,3,4)," find: "(i)A-2B" ,"],[" (ii) "B+C-2A," (iii) "2A+3B-5C" ."]

If A=d i ag (2 -5 9) , B=d i ag (1 1 -4) and C=d i ag (-6 3 4) , find A-2B (ii) B+C-2A (iii) 2A+3B-5C

If A="diag "[2,-5,9],B="diag "[-3,7,14]" and "C="diag "[4,-6,3] , find: (i) A+2B1 (ii) B+C-A (iii) 2A+B-5C.

If A=diag(2,-1,3), B=diag(-1,3,2)then A^(2)B

If A=diag(2,-1,3), B=diag(-1,3,2) then A^(2)B

If A=d i ag\ (2\ -5\ \ \ 9) , B=d i ag\ (1\ \ \ \ 1\ -4) and C=d i ag\ (-6\ \ \ 3\ \ \ 4) , find A-2B (ii) B+C-2A (iii) 2A+3B-5C

If A = diag, [2,-5,9], B = diag, [-3,7,14] and C = diag [4,-6,3], find A + 2B

If A = diag (1,-1,2) and B = diag (2,3,-1) find 3A+4B .

If A = diag, [2,-5,9], B = diag, [-3,7,14] and C = diag [4,-6,3], find 2A + B - 5C

If A = diag [1,-2,3] B = diag [3,4,-6] and C = diag [0,1,2], find A - 2 B + 3C