Let `A=[{:(1,2),(3,4):}]and B = [{:(a,0),(0,b):}]` where a, b are natural numbers, then which one of the following is correct ?

Let A={:((1,2),(3,4):}) and B={:((a,0),(0,b)):} , where a,b in N , then

Let {:A=[(1,2),(3,4)]and B=[(a,0),(0,b)]:},a,b in N Then,

If |(a,b,0),(0,a,b),(b,0,a)| = 0 , then which one of the following is correct ?

Let A = ((1,2),(3,4)) and B = ((a,0),(0,b)), a b in N . Then :

If |{:(a,b,0),(0,a,b),(b,0,a):}|=0 , then which one of the following is correct ?

If |{:(a,b,0),(0,a,b),(b,0,a):}|=0 , then which one of the following is correct ?

If A=[{:(1,2),(2,3),(3,4):}] and B=[{:(1,2),(2,1):}] then Which one of the following is correct ?

Let M=[{:(0,,1,,a),(1,,2,,3),(3,,b,,1):}] and adj M =[{:(-1,,1,,-1),(8,,-6,,2),(-5,,3,,-1):}] where a and b are real numbers. Which of the following options is/are correct ?

Let M=[{:(0,1,a),(1,2,3),(3,b,1):}] and adj M =[{:(-1,,1,,-1),(8,,-6,,2),(-5,,3,,-1):}] where a and b are real numbers. Which of the following options is/are correct ?