Question

4. Verify x + (y + z) = (x + y) + z for following values of x, y and z. x=3/5,y=-6/9,z=2/10​

Answer 1

Step-by-step explanation:

lhs =

x+(y+z)

= 3/5+(-6/9+2/10)

= 3/5+(-60+18/90)

=3/5-42/90

=3/5-7/15

=9-7/15

= 2/15

RHS =

(3/5-6/9)+2/10

(27-30/45)+1/5

= -1/15+1/5

=-1+3/15

=2/15

LHS=RHS hence proved

Answer 2

lhs

x+(y+z))

=3/5+(-6/9+2/10)

=3/5+(-60+18/90)

=3/5-42/90

=3/5-7/15

=9-7/15

2/15

rhs

(3/5-6/9)+2/10

(27-30/45)+1/5

-1/5+1/5

-1+3/15

=2/15

lhs=rhs