Question

A=B or not A={x:x2-1=0,x€N} B={-1,1}​

Answer 1

Answer:

A = { } and B = {-1,1}

so , A is not equal N.

Answer 2

$\green { A \neq B }$

Explanation:

$Given \: A = \{ x : x^{2} - 1 = 0 , x \in N \}$

$\implies A = \{ 1 \} \: ---(1)$

$B = \{ -1 , 1 \}\: ----(2)$

$(1) \neq (2)$

$\green { \therefore A \neq B }$

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