Mathematics, 30.07.2019 08:00 djkk1367
Consider u = {x|x is a positive integer greater than 1}. which is an empty set? {x|x ∈ u and 1/2 x is prime} {x|x ∈ u and 2x is prime} {x|x ∈ u and 1/2 can be written as a fraction} {x|x ∈ u and 2x can be written as a fraction}
Answers: 1
Answer from: Quest
answer: -2+√x,-2-√x
i hope this , i don't know if you're looking for a pair or not.
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