Question

7. Verify (x + y)-1 = x-1 ÷ y-1 by taking x =-1/2,y=2/3
​

Answer 1

Step-by-step explanation:

(-1/2+2/3) -1 = (-1/2)-1/(2/3)-1

(-3+4/6)-1 .=(-3/2)/2-3/3

(1/6)-1=(-3/2)/(-1/3)

1-6/6=(-3/2)×(-3)

-5/6≠9/2

LHS≠RHS