Teaching DSSSB TGT Mock Test 2025 Mathematical Science Analysis Metric Spaces

Let A and B be any two non empty subset of ℝ and A + B = {a + b: a ∈ A and b ∈ B} then which of the following is NOT correct

1

A ⊆ B ⇒ inf A ≤ inf B

2

inf(A + B) = (inf A) + (inf B)

3

inf(A + B) ≥ (inf A) ∪ (inf B)

4

none of the above

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