Write the following set in roster (Tabular) form :
A1 = {x : 2x + 3 = 11}
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Set {x : x = n2 - 1, x ∈ Z (integers) and 2 < n ≤ 5} is equal to :
{8, 15, 24}
{3, 8, 15}
{3, 8, 15, 24}
none of these
A2 = {x : x2 - 4x - 5 = 0 }
A3 = {x : x ∈ Z, -3 ≤ x < 4}