If A = {x ∈ R : x² + 6x – 7 < 0} and B = {x ∈ R : x² + 9x + 14 > 0}, then which of the following is/are correct?
1. (A ∩ B) = (–2, 1)
2. (A Δ B) = (–7, –2)
Mathematics
2015
NDA Mathematics 2015
NDA 2015
Options
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