QUESTION 2 Let f:R- (3}→ R-(2} be given by 4x -7 f(x) = 2x -6 Which of the following is true:
QUESTION 2 Let f:R- (3}→ R-(2} be given by 4x -7 f(x) = 2x -6 Which of the following is true:
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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whar are the answers please????

Transcribed Image Text:According to De Morgan's laws, RU(SNT)=
%3D
O RU(SNT)
ORUGNT)
ORN(sNT)
O Rn(SUT)
QUESTION 2
Let f:R- (3}→ R- (2} be given by
4x -7
f(x) =
2х-6°
Which of the following is true:
2у -6
f is bijective, and the inverse of f is f¯1(y) =
4у -7*
Of is not surjective.
O None of the above answers.
бу- 7
f is bijective, and the inverse of f is f¯'y):
2y-4
f is not injective.
Of is bijective but has no inverse.
QUESTION 3
Which of the following statement is false ?
O ANB2 {2,3,4} implies that {2,3,4}C A and {2,3,4}s B.
O {2,3,4}CA implies that 2 € A and (3,4}CA.
(2,3,4}€A and {2,3}€B implies that {4}c A- B.
O (2,3}CAUBimplies that if (2,3}NA= Ø then {(2,3}c B.
O A-B2(3,4} and {1,2}c B implies that {1,2,3,4}CAUB.
QUESTION 4
Is the following argument valid ?
bר
True
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