nd g = {(1, 2) , (2, 3), (3, 5), (4, 2) , (5, 1)}. /hich of the following ordered pairs does NOT belong to f o g?

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Question 5
Let
f = {(1,4) , (2, 5), (3, 1), (4, 2) , (5, 4)}
and
g = {(1,2), (2, 3), (3, 5), (4, 2) , (5, 1)}.
Which of the following ordered pairs does NOT belong to f o g?
(4, 3)
O (1,2)
(2,5)
O (5, 2)
Transcribed Image Text:Question 5 Let f = {(1,4) , (2, 5), (3, 1), (4, 2) , (5, 4)} and g = {(1,2), (2, 3), (3, 5), (4, 2) , (5, 1)}. Which of the following ordered pairs does NOT belong to f o g? (4, 3) O (1,2) (2,5) O (5, 2)
Question 2
Given that
f (x) = x³ – 4x
and
x + 2
g (x) =
13D
2
which of the following is equal to (fg) (x)?
O (r+2), for a # 2
O (x - 2)°, for a 2
O x(x +2), for a + ±2
O a(x - 2), for a # +2
Transcribed Image Text:Question 2 Given that f (x) = x³ – 4x and x + 2 g (x) = 13D 2 which of the following is equal to (fg) (x)? O (r+2), for a # 2 O (x - 2)°, for a 2 O x(x +2), for a + ±2 O a(x - 2), for a # +2
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