Ramu says the set A ={x:x€ R, x2 = -2} is not a empty set ? Do you agree with him ? Justify the answer
Answers
Answered by
10
No. I don't agree with Ramu.
x² = -2
x =√2i
√2i isn't a real number. Hence A ={ Ø }
Therefore, the set A is empty.
x² = -2
x =√2i
√2i isn't a real number. Hence A ={ Ø }
Therefore, the set A is empty.
Answered by
6
I don't agree with Ramu.
A = {x:x€R , x² = -2}
x² = -2
x = √-2
x = √2i
Ramu said that x belongs to real number. But here, x is not a real number.
So, A = { }
Set A is an empty set.
Therefore, I don't agree with him.
A = {x:x€R , x² = -2}
x² = -2
x = √-2
x = √2i
Ramu said that x belongs to real number. But here, x is not a real number.
So, A = { }
Set A is an empty set.
Therefore, I don't agree with him.
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