George Herrera
10/15/2023 · Senior High School
Find \( (f \circ g)(x) \) and \( (g \circ f)(x) \) for the pair of functions and give the domains. \( f(x)=\frac{2}{x^{2}}, g(x)=8-x \) Find \( (f \circ g)(x) \). \( (f \circ g)(x)=\square \)
UpStudy ThothAI Solution
Tutor-Verified Answer
Step-by-step Solution
To find \( (f \circ g)(x) \), we need to first find \( f(g(x)) \).
Given:
\( f(x) = \frac{2}{x^{2}} \)
\( g(x) = 8 - x \)
To find \( f(g(x)) \), we substitute \( g(x) \) into \( f(x) \):
\( f(g(x)) = f(8 - x) \)
Now, we substitute \( 8 - x \) into \( f(x) \):
\( f(8 - x) = \frac{2}{(8 - x)^{2}} \)
Therefore, \( (f \circ g)(x) = \frac{2}{(8 - x)^{2}} \).
The domain of \( (f \circ g)(x) \) is the set of all real numbers except for the values that make the denominator zero. In this case, the denominator is \( (8 - x)^{2} \), which is zero when \( x = 8 \). So, the domain of \( (f \circ g)(x) \) is all real numbers except \( x = 8 \).
Therefore, \( (f \circ g)(x) = \frac{2}{(8 - x)^{2}} \) and the domain is all real numbers except \( x = 8 \).
Quick Answer
\( (f \circ g)(x) = \frac{2}{(8 - x)^{2}} \), domain: all real numbers except \( x = 8 \).
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
Submit