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Questions  

The domain  of f(x)  =sin1[x] (where [ ] represents the greatest integer function). 

a
−1,2
b
(-1,2)
c
[-1,2]
d
[1,2]

detailed solution

Correct option is A

f(x)=sin−1⁡[x] is defined if     −1≤[x]≤1 or     [x]=−1,0,1 or      x∈[−1,2) So, range is sin−1⁡(−1),sin−1⁡0,sin−1⁡1≡{−π2,0,π2}

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