Question

Verify
(X+y)+z=
X=-11/12 y=-5/6 z=3

Answer 1

Answer:

5/3

Explanation:

(x + y) + z

(-11/12 + -5/6) + 3

((-11-5)/12) + 3

-4/3 + 3

(-4+9)/3

5/3

Answer 2

Correct Question : Verify (X + Y ) + Z = X + ( Y + Z)

Given : X = – 11 / 12 , Y = – 5 / 6 , Z = 3

LHS :

( X + Y ) + Z = [ ( – 11 / 12 ) + ( – 5 / 6 ) ] + 3

= [ ( – 11 – 10 ) / 12 ] + 3

= [ – 21 / 12 ] + 3

= ( – 21 + 36 ) / 12

= 15 / 12 – ( i )

RHS :

X + ( Y + Z) = – 11 / 12 + [ ( – 5 / 6 ) + 3 ]

= – 11 / 12 + [ ( – 5 + 18 ) / 6 ]

= – 11 / 12 + [ 13 / 6 ]

= ( – 11 + 26 ) / 12

= 15 / 12 – ( ii )

from ( i ) and ( ii)

LHS = RHS

Hence verified

Hope the solution is clear to you!!