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Solution


Q.

If the domain of the function f(x)=sin-1(1x2-2x-2), is (-∞,α]∪[β,γ]∪[δ,∞), then α+β+γ+δ is equal to             [2026]
1 4  
2 2  
3 3  
4 5  

Ans.

(1)