Which of the following is the empty set- -x- x- is a real number and - x-2-1-0- -x- x- is a real number and - x-2-1-0- -x- x- is a real number and - x-2-9-0- -x- x- is a real number and - x-2-x-2-

The correct option is B {x: x is a real number and x^2+1=0} x^2+1=0 ⇒ x^2 = 1 ⇒ x = ± i i.e x is an imaginary number.Henc ...

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Logarithmic Function

Which of the ...

Question

Which of the following is the empty set

{x : x

is a real number and

x^{2} - 1 = 0}

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{x : x

is a real number and

x^{2} + 1 = 0}

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{x : x

is a real number and

x^{2} - 9 = 0}

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{x : x

is a real number and

x^{2} = x + 2}

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Similar questions

A = {- 1, 1}

Write the set builder form A = {-1, 1}.

x^{2}

Let $U = R ($ the set of all real numbers $)$ If $A = {x : x \in R, 0 < x < 2}, B = {x : x \in R, 1 < x \leq 3}$ , then

A = {x : x \in N; 1 < x < 4}

B = {x : x

x^{2} + 5 x + 6 = 0}

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