If f: X to Y and g :Y to Z are functions and g o f is one-to-one, thus, g must be one-to-one. O True O Insufficient information to find the answer Maybe O False

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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Pls answer the 2 question if possible, if not pls answer atleast one. Highly appreciated if both will be answered

If f: X to Y and g : Y to Z are functions and g o f is one-to-one, thus, g must be one-to-one.
True
O Insufficient information to find the answer
Maybe
O False
Transcribed Image Text:If f: X to Y and g : Y to Z are functions and g o f is one-to-one, thus, g must be one-to-one. True O Insufficient information to find the answer Maybe O False
Given the domain consisting of real numbers, which of these statements is/are true?
(a) Jr(x³ = -1)
(b) Jr(x4 < x²)
(c) Væ((-a²) = x?)
(d) Vx(2x > x)
O a, b, and c only
O b only
O band c only
a and b only
O a only
all statements are true
none of the choices
Transcribed Image Text:Given the domain consisting of real numbers, which of these statements is/are true? (a) Jr(x³ = -1) (b) Jr(x4 < x²) (c) Væ((-a²) = x?) (d) Vx(2x > x) O a, b, and c only O b only O band c only a and b only O a only all statements are true none of the choices
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