Question
What is a monotonically increasing function?
Options :
x₁ > x₂ ⇒ f(x₁) ≤ f(x₂) ∀ x₁, x₂ ∈ (a,b) ∀ c ∈ a
x₁ < x₂ ⇒ f(x₁) ≤ f(x₂) ∀ x₁, x₂ ∈ (a,b)
x₁ < x₂ ⇒ f(x₁) = f(x₂) ∀ x₁, x₂ ∈ (a,b)
x₁ = x₂ ⇒ f(x₁) ≤ f(x₂) ∀ x₁, x₂ ∈ (a,b)
Answer :
x₁ < x₂ ⇒ f(x₁) ≤ f(x₂) ∀ x₁, x₂ ∈ (a,b)
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