Answers

2015-05-28T18:50:45+05:30
False..for exmple let x/y equals 1/2 nd c/d equals 2/1 then the addition becomes 5/2 hence false

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2015-05-30T12:19:21+05:30
True , Let x/y = 3/2 then c/d = -3/2 
         Now , x/y +c/d = 0 
                  3/2 + (-3/2) = 0
                  3/2 -3/2 =0 
                   0=0
Therefore , L.H.S = R.H.S .
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