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

Which of the following is the 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 real number and `x^(2) = 5x + 6`}

Text Solution

Verified by Experts

The correct Answer is:
B
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