Math Problem Statement
已知函数f(x)=3^x+3^-x,解不等式f(x)<(5/2)
Solution
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Math Problem Analysis
Mathematical Concepts
Exponential Functions
Quadratic Inequalities
Logarithms
Formulas
f(x) = 3^x + 3^{-x}
y + 1/y < 5/2
2y^2 - 5y + 2 < 0
Quadratic formula: y = (-b ± √(b^2 - 4ac)) / 2a
log_3(x) to solve for x
Theorems
Properties of Exponential Functions
Quadratic Formula Theorem
Logarithm Properties
Suitable Grade Level
Grades 10-12
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