in each of the following show that a-(b-c) ≠(a-b) -c.
(b) a =5/3,b=11/2,c=-9/4
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LHS = a-(b-c)
5/3 - {11/2 - (-9/4)}
=5/3 - (22+9/4)
=5/3 - 31/4
=20 - 93 / 12
= 73/12
RHS = (a-b) -c
(5/3 - 11/2) - (-9/4)
= (10 - 33/6) - (-9/4)
= -23/6 - (-9/4)
= -46 - (-27)/12
= -46 +27 / 12
= -19/12
Therefore,
LHS doesn't equal RHS
H/V.
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