How many of the following are valid functions? f: R→R, f(x) = e = g: R→ R, g(x) = ln(x² + 1) h : R → R, h(x) = sin()

Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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How many of the following are valid functions?
f: RR, f(x) = e²-1
g: RR, g(x) = ln(x² + 1)
h: R→ R, h(x) = sin()
Transcribed Image Text:How many of the following are valid functions? f: RR, f(x) = e²-1 g: RR, g(x) = ln(x² + 1) h: R→ R, h(x) = sin()
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