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True or false: an equation of order two always has a general solution with two arbitrary constants.

  • A.True, one constant arising from each integration
  • B.False, the number depending on the degree as well
  • C.False, a nonlinear equation of order two needing only one
  • D.True, but only when the coefficients are constant

Answer: A

Each integration introduces one constant, so an order-two equation carries two, and the initial or boundary conditions fix them. This holds whether the coefficients are constant or variable. The degree affects how hard the equation is to solve, not how many constants the solution needs

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