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.TrueO Insufficient information to find the answerMaybeO 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 onlyO b onlyO band c onlya and b onlyO a onlyall statements are truenone of the choices

We need to check if, g is one to one or not. *As per guidelines, only 1st question is answered.

Answered: If f: X to Y and g :Y to Z are…

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

Section: Chapter Questions

Problem 1PE

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Question

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

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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