Math Problem Statement
函数y=log_1/3 (2^x+1)的值域为
Solution
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Math Problem Analysis
Mathematical Concepts
Logarithmic Functions
Exponential Functions
Function Domains and Ranges
Formulas
y = log_b(x)
2^x + 1
log_b(x) for b ∈ (0,1)
Theorems
Properties of Logarithms
Decreasing Nature of Logarithmic Functions with Base < 1
Suitable Grade Level
Grades 10-12
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