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Let f(x)={1+|x|,x<-1 [x],xgeq-1 , where ...

Let `f(x)={1+|x|,x<-1 [x],xgeq-1` , where [.] denotes the greatest integer function. The find the value of `f{f(-2.3)}dot`

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The correct Answer is:
3
`f(x)={(1+|x|",",x lt -1),([x]",",x ge -1):}`
`f(-2.3)=1+|-2.3|=1+2.3=3.3`
Now, `f(f(-2.3))=f(3.3)=[3.3]=3`
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