([" CBSE "2010)," 2."[[3,1],[5,2]]]

If A = [[2/3,1,5/3],[1/3,2/3,4/3],[7/3,2,2/3]] and B = [[2/5,3/5,1],[1/5,2/5,4/5],[7/5,6/5,2/5]] , then compute 3A-5B

If A=[[-1,5],[-3,2]] , then adj A= (A) [[2,3],[-5,-1]] (B) [[1,-5],[3,-2]] (C) [[2,-5],[3,-1]] ,(D) [[-2,5],[-3,1]]

The adjoint of the matrix [(2,5),(3,1)] is (A) [(2,5),(3,1)] (B) [(1,-5),(-3,2)] (C) [(1,-3),(-5,2)] (D) [(-1,3),(5,-2)]

The adjoint of the matrix [(2,5),(3,1)] is (A) [(2,5),(3,1)] (B) [(1,-5),(-3,2)] (C) [(1,-3),(-5,2)] (D) [(-1,3),(5,-2)]

Let A = (1,2,3,5), let f = f = (1,5), (2,1), (3,3), (5,2) and g = (1,3),(2,1),(3,2),(5,5) find gof

Let A = (1,2,3,5), let f = f = (1,5), (2,1), (3,3), (5,2) and g = (1,3),(2,1),(3,2),(5,5) find fog

Let A = (1,2,3,5), let f = f = (1,5), (2,1), (3,3), (5,2)) and g = ((1,3),(2,1),(3,2),(5,5)) find fof

Let A = (1,2,3,5), let f = f = (1,5), (2,1), (3,3), (5,2)) and g = ((1,3),(2,1),(3,2),(5,5)) find gog

If A = {:[(2//3, 1 , 5//3),(1//3, 2//3, 4//3),(7//3, 2, 2//3)] and B = [(2//5, 3//5, 1),(1//5, 2//5, 4//5),(7//5,6//5,2//5)] then compute 3A + 5B.

sum_(k=1)^m(k^2+1)k=2009xx2010!, then m= (A) 2009 (B) 2010 (C) 2011 (D) none of these