1. Solve the following systems of equations using Determinanats:-

a) x+y=3; 2x+3y=7

b) 3x+2y=5; x+3y=4

c) x+2y+z=7; 2x-y+2z=4; x+y-2z=-1

d) 3x+y-z=2; 2x-y+2z=6; 2x+y-2z=-2

e)

2. What is the value of the determinant:

?

3. Are the two determinants equal?

4. If

, then what is

equal to?

5. What is the value of the determinant given below?

6. Are the two matrices A and B equal?