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Which of the following is the empty set?...

Which of the following is the empty set?

A

`{x : x in R , x^(2) - 1=0}`

B

`{x : x in N,x^(2) - 4=0}`

C

`{x: x in R,x^(2)-x - 1=0}`

D

`{x : x in N, x^(2) + 4x + 3 = 0}`

Text Solution

Verified by Experts

The correct Answer is:
C
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