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Essential Derivative and Integration Rules with Applications

스터디 가이드 - 스마트 노트

자료에 맞춘 맞춤형 노트, 핵심 정의, 예시, 맥락을 확장해 제공합니다.

Derivative Rules and Their Applications

Basic Derivative Rules

The derivative of a function measures the rate at which the function changes with respect to its variable. Several fundamental rules allow us to compute derivatives efficiently.

  • Power Rule: For , the derivative is .

  • Sum Rule: For , the derivative is .

  • Product Rule: For , the derivative is .

  • Quotient Rule: For , the derivative is .

  • Chain Rule: For , the derivative is .

Derivatives of Common Functions

  • Natural Exponential: , .

  • Natural Logarithm: , .

  • Sine: , .

  • Cosine: , .

  • Tangent: , .

  • Secant: , .

  • Inverse Sine: , .

  • Inverse Tangent: , .

Examples of Derivative Computation

  • Example 1:

  • Example 2:

  • Example 3:

  • Example 4:

Higher Order Derivatives

  • Example: First derivative: Second derivative:

Applications of Derivatives

Tangent Line Approximation

The tangent line to a function at a point provides a linear approximation near that point.

  • Equation of Tangent Line: For at , .

  • Example: at , Tangent line: Approximate :

Integration and Antiderivatives

Relationship Between Derivatives and Integrals

If is the derivative of , then is an antiderivative of . The indefinite integral of is .

  • if and only if

Indefinite Integrals: Examples

  • Example (a):

  • Example (b): Expand numerator:

  • Example (c):

  • Example (d):

Table: Derivative Rules Summary

Rule Category

Function

Derivative

Power Rule

Sum Rule

Product Rule

Quotient Rule

Chain Rule

Natural Exponential

Natural Logarithm

Sine

Cosine

Tangent

Secant

Inverse Sine

Inverse Tangent

Additional info:

  • Some expressions were clarified and expanded for academic completeness.

  • Where original notation was ambiguous, standard calculus notation was used.

  • Examples were rewritten for clarity and accuracy.

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