KCET 2023 Math Solved Paper

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Question : 46 of 60

Marks: +1, -0

Which of the following is an empty set?

{x:x2−9=0,x∈R}
{x:x2=x+2,x∈R}
{x:x2−1=0,x∈R}
{x:x2+1=0,x∈R}

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