Vaughan Wang
06/21/2024 · Junior High School

Dada la función \( f: \mathbb{R}-\{2\} \rightarrow \mathbb{R}-\{-1\} \), donde \( f(x)=\frac{x}{x-2} \) a. iLa función es inyectiva? Si es inyectiva

UpStudy ThothAI Solution

Tutor-Verified Answer

Step-by-step Solution

Para determinar si la función \( f(x) = \frac{x}{x-2} \) es inyectiva, debemos verificar si para \( f(a) = f(b) \) se sigue que \( a = b \). 1. Supongamos que \( f(a) = f(b) \): \[ \frac{a}{a-2} = \frac{b}{b-2} \] 2. Multiplicamos ambos lados por \( (a-2)(b-2) \) (asumiendo que \( a \neq 2 \) y \( b \neq 2 \)): \[ a(b-2) = b(a-2) \] 3. Expandimos ambos lados: \[ ab - 2a = ab - 2b \] 4. Restamos \( ab \) de ambos lados: \[ -2a = -2b \] 5. Dividimos ambos lados por \(-2\): \[ a = b \] Dado que hemos demostrado que \( f(a) = f(b) \) implica que \( a = b \), podemos concluir que la función \( f(x) \) es inyectiva. Por lo tanto, la respuesta es que sí, la función \( f(x) = \frac{x}{x-2} \) es inyectiva.

Quick Answer

La función \( f(x) = \frac{x}{x-2} \) es inyectiva.
Answered by UpStudy AI and reviewed by a Professional Tutor
UpStudy ThothAI
Self-Developed and Ever-Improving
Thoth AI product is constantly being upgraded and optimized.
Covers All Major Subjects
Capable of handling homework in math, chemistry, biology, physics, and more.
Instant and Accurate
Provides immediate and precise solutions and guidance.
Try Now
Ask Tutors
Ask AI
10x
Fastest way to Get Answers & Solutions
By text

Enter your question here…

By image
Re-Upload
Uploaded Files
xxxx.png0%
Submit
📸 STUDY CAN BE A REAL STRUGGLE
Why Not UpStudy It?
Select your plan below
Premium

You can enjoy

  • Step-by-step explanations
  • 24/7 expert live tutors
  • Unlimited number of questions
  • No interruptions
  • Full access to answer and
    solution
Basic
  • Limited Solutions