Question

verify the property x*y=y*x by taking: 1)x=-1/3,y=2/7 2)x=-3/5,y=-11/13 3)x=2,y=7/-8

Answer 1

1) x=-1/3,y=2/7

x*y=y*x

-1/3*2/7=2/7*-1/3

-2/21=-2/21

So, LHS=RHS

2) x=-3/5,y=-11/13

x*y=y*x

-3/5*-11/13=-11/13*-3/5

33/65=33/65

So, LHS=RHS

3) x=2,y=7/-8(=-7/8)

x*y=y*x

2*-7/8=-7/8*2

-7/4=-7/4

So, LHS=RHS