verify x+(y+z)=(x+y)+z where x=2/3,y=-5/7,z=-7/9
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Answered by
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ᴀɴsᴡᴇʀ
we have,
to prove:
proof:
- LHS = x + (y + z)
- RHS = (x + y) + z
first consider LHS,
x + (y + z)
put the value of x , y and z in this expression;
now, solve RHS
(x + y) + z
now, put the value of x , y and z in this expression;
from eq.(i) and (ii) we get,
- LHS = -52/63
- RHS = -52/63
➪ LHS = RHS
so that, x + (y +z) = (x + y) + z
hence, verified!
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