Dunman High School (DHS)
Substitution u=y/x
Open question & worked solutionFree practice / JC2 H2 Maths Prelim
Choose a question, attempt it on paper, then compare your working with the step-by-step solution.
Real 2025 JC Preliminary Examination Differential Equations questions from H2 Mathematics (9758), each with a full worked solution and examiner notes. These are the same papers we work through in our JC H2 Maths Crash Course.
Select a question to see the full problem and solution.
Substitution u=y/x
Substitution u=xy2
Salt tank; inflow/outflow DE
Biomass; growth models
Coffee beans; logistics
Particulates; separable DE
Subst. w=x2y; pest model
Substitution y= ln (u/x)
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