Verify that -(-x)=x for

(i)Here x= 11/15

The additive inverse of “a” is given as “-a”

Therefore,

 additive inverse of 11/15 ia -11/15

Now,Therefore,-(-x) = -( -11/15) = 11/15 = x -(-11/15) = 11/15 = x

(ii)Here x = -13/17

Theadditiveinverseof“a”isgivenas“-a”

Therefore

 additive inverse of -13/17 is  13/17,

Now,Therefore,-(-x)  = -( 13/17) =  -13/17 =x