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```        SIR PLS EXPLAIN ME THIS TERM:
f(x)=[x]={-1,[-1,0), 2,[2,3)}
sir this term belongs to greatest int func and iam not able to get it as the definition is less than OR = to x.```
7 years ago

147 Points
```										Dear vardaan
exact difinition is "greatest integer less than or equal to x"
now lets analysise this difinition.....
suppose we have x= 9.8
now write all the intieger less than 9.8  ,it will be  9,8,7,6,5,4,3,2,1,0,-1,-2.........( second half of the difinition ,"less than or  equal to x")
now answer will be gretest among the above written intiger , ie = 9 ( first half of the difinition ," greatest intiger")
so in short we can write  [9.8] =9

Please feel free to post as many doubts on our discussion forum as you can.If you find any question Difficult to understand - post it here and we will get you the answer and detailed  solution very  quickly. We are all IITians and here to help you in your IIT JEE preparation.All the best. Regards,Askiitians ExpertsBadiuddin

```
7 years ago
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