Math Problem Statement
Decompose the function f, of, g, of, h, of, x, equals, 8, sine, x, plus, 2f(g(h(x)))=8sinx+2 into f, of, xf(x), g, of, xg(x) and h, of, xh(x).
Solution
To decompose the function into individual functions , , and , let's go through it step-by-step.
We have:
Our goal is to find functions , , and such that when composed as , we obtain the expression .
Step 1: Identify the innermost function
Let's set: This simplifies our problem because will simply return for any .
Step 2: Define such that transforms the expression.
To approach the form , let's set: This means that , which closely resembles the expression except for the term.
Step 3: Define to adjust the expression as needed
Now we need such that: To achieve this, we can set:
Summary
The functions , , and are as follows:
Now, if we compose these functions: This matches the original expression, so our decomposition is correct.
Would you like further explanation on any step, or have questions?
Here are 5 related questions to deepen understanding:
- How would the decomposition change if the function had a different additive constant?
- Can we find alternative decompositions with the same final function?
- How does the decomposition of trigonometric functions affect the composition?
- What is the impact of choosing a different innermost function in decomposition?
- How does this approach generalize to other functions besides trigonometric ones?
Tip: In function decomposition, start by simplifying the innermost function first to build up to the target expression step-by-step.
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Math Problem Analysis
Mathematical Concepts
Function Composition
Trigonometric Functions
Formulas
f(g(h(x))) = f(g(x)) = f(8sin(x)) = 8sin(x) + 2
Theorems
Decomposition of Composite Functions
Suitable Grade Level
Grades 10-12