If `x^a y^b=e^m , x^c y^d=e^n ,Delta_1=|(m,b),(n,d)|,and Delta_2 =|(a,m),(c,n)| and Delta_3=|(a,b),(c,d)|,` then the values of x and y are

If x^(a)y^(b)=e^(m),x^(c)y^(d)=e^(n),Delta_(1)=[(m,b),(n,d)]Delta_(2)=[(a,m),(c,n)], Delta_(3)=[(a,b),(c,d)] then the value of x and y are respectively.

If x^(2a)y^(3b)=e^(5m), x^(3c)y^(4d)=e^(2n), Delta_(1)=|(5m, 3b),(2n, 4d)|, Delta_(2)=|(2a, 5m),(3c, 2n)| and Delta_(3)=|(2a, 3b),(3c, 4d)| , then the values of x and y are

If x^(2a)y^(3b)=e^(5m), x^(3c)y^(4d)=e^(2n), Delta_(1)=|(5m, 3b),(2n, 4d)|, Delta_(2)=|(2a, 5m),(3c, 2n)| and Delta_(3)=|(2a, 3b),(3c, 4d)| , then the values of x and y are

If A=|{:(a,d,l),(b,e,m),(c,f,n):}|" and B = "|{:(l,m,n),(a,b,c),(d,e,f):}| , then

If Delta_1=|[2a,b,e],[2d,e,f],[4x,2y,2z]|,Delta_2=|[f,2d,e],[2z,4x,2y],[e,2a,b]| , then the value of Delta_1-Delta_2 is

If D_(1)=|(a,b,c),(x,y,z),(l,m,n)|andD_(2)=|(m,-b,y),(-l,a,-x),(n,-c,z)| evaluate D_(1)+D_(2) .

If a x^2+2h x y+b y^2+2gx+2f y+c=(l x+m y+n)(l prime x+m^(prime)y+n^(prime)) and Delta_1=|(l,l prime,0),(m,m prime,0),(n,n prime,0)|and Delta_2=|(l prime,l,0),(m prime,m,0),(n prime,n,0)|, then the product Delta_1 Delta_2 is

Given A=|a b2c d e2fl m2n|,B=|f2d e2n4l2m c2a b| , then the value of B//A is ___________.