Which functions are not invertible? y=tan(2x) Dy=2-5e-2 y = x(x² - 4) f(x) is the volume in liters of a kg of water at 4°C at sea level. f(w) is the cost of mailing a letter weighing w grams.

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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Q4.1
Which functions are not invertible?
y=tan(2x)
Q4.2
Which equation does not represent y as a function of a?
y-2² = 0
A
y = 25e-*
y = x(x² - 4)
f(x) is the volume in liters of a kg of water at 4°C at sea level.
f(w) is the cost of mailing a letter weighing w grams.
Q4.3
y+
10
x
= 0
y + x² = 10
3x² + 4y² = 12
y = log(x)
The interval solution to the inequality
(-2,2)
(-∞,2)
[2,00)
(-2,2
None of the above
3(x + 2)2 6x(x + 2)
(x+2)4
> 0 is:
Transcribed Image Text:Q4.1 Which functions are not invertible? y=tan(2x) Q4.2 Which equation does not represent y as a function of a? y-2² = 0 A y = 25e-* y = x(x² - 4) f(x) is the volume in liters of a kg of water at 4°C at sea level. f(w) is the cost of mailing a letter weighing w grams. Q4.3 y+ 10 x = 0 y + x² = 10 3x² + 4y² = 12 y = log(x) The interval solution to the inequality (-2,2) (-∞,2) [2,00) (-2,2 None of the above 3(x + 2)2 6x(x + 2) (x+2)4 > 0 is:
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