Math Problem Statement
Diketahui f(x) = x + 5, g(x) = 4x - 3, dan h(x) = 2x + 1. Pernyataan berikut yang benar adalah
A. (F¹og¯¹ h¯¹)(x) = x45
B. (¹¹g)(x) = 41 C. (g¹¹ h¯¹)(x) = 5
D. (gh¹ f')(x) = x12
E. (h.gr')(x) = x
Solution
Untuk menyelesaikan soal ini, mari kita analisis setiap pernyataan yang diberikan satu per satu. Berikut definisi dari fungsi-fungsi yang diketahui:
A.
-
Untuk menentukan apakah ini benar, kita harus menemukan invers dari setiap fungsi terlebih dahulu.
- Invers , yaitu .
- Invers , yaitu .
- Invers , yaitu .
Setelah itu, kita hitung : [ f^{-1}(g^{-1}(h^{-1}(
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Math Problem Analysis
Mathematical Concepts
Algebra
Functions
Inverse Functions
Composition of Functions
Formulas
Inverse of f(x) = x + 5 is f⁻¹(x) = x - 5
Inverse of g(x) = 4x - 3 is g⁻¹(x) = (x + 3) / 4
Inverse of h(x) = 2x + 1 is h⁻¹(x) = (x - 1) / 2
Composition of functions: (f ∘ g)(x) = f(g(x))
Theorems
Inverse Function Theorem
Composition of Functions
Suitable Grade Level
Grades 10-12
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