3) Verify that a + b = b + a by taking (1) a = -7/5, b = 2/7
(2) a = -1 , b = -2/3
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Answer:
(1)
LHS
a+b=-7/5+2/7
=-35+10/35
=-25/35
RHS
b+a=+2/7-7/5
=10-35/35
=-25/35
LHS=RHS
(2)
LHS
a+b=-1-2/3=-5/3
RHS
b+a=-2/3-1=-5/3
LHS=RHS
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