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Which of the following collection is nul...

Which of the following collection is null set?

A

`{x:x " is a real number and " x^2-1=0}`

B

`{x:x " is a real number and " x^2+1=0}`

C

`{x:x " is a real number and " x^2-9=0}`

D

`{x:x " is a real number and " x^2=x+2}`

लिखित उत्तर

Verified by Experts

The correct Answer is:
B
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