Chapter 1 ,2,3,4,5,6,7|अतिमहत्वपूर्ण MCQ

If ={1,2,3},B={2,4,5,6}andC={1,3,5,7}, then U={1,2,3,4,5,6,7} can be taken as the universal set.

Compute : 2{:[(2,3,4,1),(-5,11,6,7)]:}+5{:[(11,13,-3,4),(5,-3,4,-7)]:}-6{:[(6,12,4,-2),(-3,5,11,7)]:} .

The order of the matrices [{:(1,2,3),(4,5,-1):}], [{:(2,4),(9,2),(6,3),(4,1):}] , [{:(4,5,6),(3,2,1),(9,8,7):}] respectively are :

Let A={1,2,3,4},B={5,6,7} and f={( 1,6),(2,7),(3,5),(4,6)} . The f is :

Let X ={1,2,3,4,5,6,7,8,9} A= {2,4,5,7,8}, B= {1,3,5,7}, C={4,6,8,9}, then A nn (BuuC)

If A = { 1 , 2 , 3 , 4 , 5 , 6 , 7 ] And B = { 2 , 3 , 5 , 7 } Then prove that A ∩ B = B

4.Find the rank of the matrix [[3,4,1,2],[3,2,1,4],[7,6,2,5]]