If `A = [ [ 6 , 7 ] , [ 2 , 4 ] ]` , find |A|

If A=[[3,6,-5]] and B=[[4] , [7] , [2]] then find AB and BA

Data :   4 , 7 ,9 , 3 , 4 , 5, 3 , 6 ,7 ,6 ,8 , 6 ,7 , 6 , 5 , 6 ,8 , 6 , 5 and 4 ; then find the mode

If A=[[2,3],[4,7]] and B=[[1,3],[4,6]] find 3A-2B

If A=[[2,3],[4,7]] and B=[[1,3],[4,6]] find 3A-2B

Find the range of { 2 , 7 , 6 , 4 , 3 , 8 , 5 , 12}.

If =[[1,4,-1],[2,6,5]] and B=[[3,-2,-6],[2,0,-7]] , find A+B and A-B

Let U= {1, 2, 3, 4, 5, 6, 7, 8,9}, A={1, 2, 3, 4}, B = {2, 4, 6, 8) and C={3, 4, 5, 6}. Find A'

Find the mode of (i) 7, 7, 8, 10, 10, 11, 10, 13, 14 (ii) 4, 5, 6, 7, 8, 7, 6, 5, 3, 4, 6, 7, 6

How many 7'immediately preceded by 6 but not immediately followed by 4 are there in the following series? 7 4 2 7 6 4 3 6 7 5 3 5 7 8 4 3 7 6 7 2 4 0 6 7 4 3