a) Let A, B, U and V be any sets such that A CU and BC V. Is (A × B) C (U x V)? Justify your answer. b) Suppose f: R → Z where f(x) =| 2x – 11. i. If A = {x |1 < x < 4}, find f (A). ii. If B = {3,4,5,6,7}, find f (B). iii. If C = {-9,-8}, find f¯'(C). c) Let f: R → R be defined by f (x) = 2x² + 2x – 12. Is fone-to-one? Justify %3D your answer.

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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a) Let A, B, U and V be any sets such that A CU and BC V. Is (A × B) C
(U x V)? Justify your answer.
b) Suppose f: R → Z where f(x) = [2x – 11.
i. If A = {x |1 <x < 4}, find f(A).
ii. If B = {3,4,5,6,7}, find f (B).
iii. If C = {-9,–-8}, find f¯1(C).
c) Let f: R → R be defined by f (x) = 2x² + 2x – 12. Is fone-to-one? Justify
your answer.
Transcribed Image Text:a) Let A, B, U and V be any sets such that A CU and BC V. Is (A × B) C (U x V)? Justify your answer. b) Suppose f: R → Z where f(x) = [2x – 11. i. If A = {x |1 <x < 4}, find f(A). ii. If B = {3,4,5,6,7}, find f (B). iii. If C = {-9,–-8}, find f¯1(C). c) Let f: R → R be defined by f (x) = 2x² + 2x – 12. Is fone-to-one? Justify your answer.
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