If `A=(1 2 3-1)a n dB=(1 3-1 1),` write the value of `|A B|` .

IF A=[{:(1,2),(3,-1):}] and B=[{:(1,3),(-1,1):}] then write the value of [AB].

If 3^(2n - 1) = 1/(27^(n - 3)) , then the value of n is

If 3^(2n-1)= (1)/(27^(n-3)) , then the value of n is

The HCF of (a -1) (a^(3) + m) and (a +1) (a^(3) -n) and (a +1) (a^(2) -n) " is " a^(2) -1 , then the value of m and n are ______

If A^T=[3 4-1 2 0 1]a n dB=[-1 2 1 1 2 3], find A^T-B^T