Answers

2016-01-28T22:16:04+05:30
|x| is always +ve
|x|=x ,x>=0
    =-x ,x<0
let x=5
case i) |x|=5
case ii) gn x is<0
hence,then ,let x= -5
|x|=-x= -(-5)=5
hence |x|of any no. is always +ve
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