Relationship between Differentiability and Continuity at a Point

Important conclusion: If a function f(x) is differentiable at a point x₀, then f(x) must be continuous at x₀. The converse is not true: continuity does not imp…

Syllabus path: Functions › Preliminary Derivatives › Definition of the Derivative

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CSCA Mathematics Formula Reference

Formula and explanation

Important conclusion: If a function f(x) is differentiable at a point x₀, then f(x) must be continuous at x₀. The converse is not true: continuity does not imply differentiability. Explanation: Differentiability is a stronger condition than continuity. For example, the function f(x) = |x| is continuous but not differentiable at x = 0.

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Definition of the Derivative

Definition of the Derivative 1. Core Concepts The Derivative is the cornerstone of calculus, quantifying how fast a function changes at a specific point. Physical Meaning: Instantaneous Rate of Change (e.g., Velocity is the derivative of Displacement). Geometric Meaning: The Slop…

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