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Differential Equations — Part 2: Homogeneous and linear equations, growth and decay

Beta
Lesson

Differential Equations, Part 2

Two powerful methods: the substitution y=vxy = vx and the integrating factor.

In this lesson you will

  • Test a function for homogeneity and find its degree
  • Solve homogeneous equations with the substitution y = vx
  • Solve linear equations with an integrating factor, in either variable
  • Model growth and decay with first-order equations
  • y=−xlog⁡(1−log⁡x)y = -x\log(1 - \log x)
Worked example 6: a homogeneous equation solved with $y = vx$.