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Questions  

Find the  range of f(x) f(x)=sin1[x] 

a
−π2,0
b
−π2,0,π2
c
−π2,π2
d
ϕ

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≡{−π/2,0,π/2}

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