Q. 3 D5.0( 2 Votes )

Which of the foll

Equal Sets = Two sets A and B are said to be equal if they have exactly the same elements & we write A = B

We have,

G = {-1, 1}

and H = {x : x ϵ Z, x2 – 1 = 0}

Here, x Z and x2 – 1 = 0

The given equation can be solved as:

x2 – 1 = 0

x2 = 1

x = √1

x = ± 1

x = -1 and 1

H = {-1, 1}

G = H because elements of both the sets are equal.

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