(b) ƒ(AnB) ≤ f(A) Ñ ƒ(B)

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter5: Inverse, Exponential, And Logarithmic Functions
Section5.3: The Natural Exponential Function
Problem 52E
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Suppose f: X → Y, and A, B C X. Prove that
(a) f(AUB) = ƒ(A) U ƒ(B)
(b) f(An B) ≤ f(A)n f(B)
Transcribed Image Text:Suppose f: X → Y, and A, B C X. Prove that (a) f(AUB) = ƒ(A) U ƒ(B) (b) f(An B) ≤ f(A)n f(B)
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