D = {x : x ∈ R, x2 = -1} is it an empty set?

1.	D = {x : x ∈ R, x2 = -1} is it an empty set?
Answer» Answer: YES Step-by-step explanation: Yes, D is an EMPTY set. Since, when any positive number or negative number is SQUARED, the result is always a positive number. In the case of the above QUESTION, there is no such number which when squared results a negative number.

Answer»

Answer:

Step-by-step explanation:

Yes, D is an EMPTY set. Since, when any positive number or negative number is SQUARED, the result is always a positive number. In the case of the above QUESTION, there is no such number which when squared results a negative number.

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D = {x : x ∈ R, x2 = -1} is it an empty set?

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