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

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Chapter2: Second-order Linear Odes
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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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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 Click Save and Submit to save and submit. Click Save All Answers to save all answers. Save All.
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