Math Problem Statement
Solution
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Math Problem Analysis
Mathematical Concepts
Continuity
Limits
Piecewise Functions
Absolute Value
Formulas
f(x) = (3x^2 + |x|)/x, nếu x ≠ 0
f(x) = 1, nếu x = 0
Lim_{x -> 0^+} f(x)
Lim_{x -> 0^-} f(x)
Theorems
Definition of continuity: A function is continuous at x = a if f(a) is defined, the limit of f(x) as x approaches a exists, and Lim_{x -> a} f(x) = f(a).
Limit properties for piecewise functions
Suitable Grade Level
High School (Grades 10-12)
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