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```
let y = [x], where [ ] is greatest integer function. then which of the following is true 1)- |x| = x[x] 2)- [[x]] = [x] 3)- x = |x|[x] 4)- all of the above
let y = [x], where [  ] is greatest integer function. then which of the following is true 1)- |x| = x[x]2)- [[x]] = [x]3)- x = |x|[x]4)- all of the above

```
3 years ago

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137 Points
```							2nd option is correct as u take any number the greatest integer of that number is always integer. For example take x=2.78 then RHS is  [x]=2 and LHS is [[2.78]]=[2]=2 therefore 2 nd option is write
```
3 years ago
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