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Solve exponential separable equations · Check your progress
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Return a supplied substitution to y · Check your progress
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Solve quadratic-rate equations and select maximal intervals · Check your progress
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Restore shifted quadratic-rate solutions and their domains · Check your progress
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Solve exponential separable equations · Check again
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Return a supplied substitution to y · Check again
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Solve quadratic-rate equations and select maximal intervals · Check again
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Restore shifted quadratic-rate solutions and their domains · Check again
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Solve exponential separable equations · Retention check
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Return a supplied substitution to y · Retention check
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Solve quadratic-rate equations and select maximal intervals · Retention check
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Restore shifted quadratic-rate solutions and their domains · Retention check
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Practise: Solve exponential separable equations
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Practise: Return a supplied substitution to y
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Practise: Solve quadratic-rate equations and select maximal intervals
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Practise: Restore shifted quadratic-rate solutions and their domains
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Revision notes
Solve separable equations, retain initial-value domains and excluded solutions, then formulate and interpret changing-quantity models.
Key ideas
- Separation, initial values and lost solutions
Retain equilibrium solutions, transform derivatives and initial-value domains, and formulate rate models with physical limits.
From the GCE A-Level H2 Mathematics 2027 syllabus
- Include: general and particular solutions of dy/dx = f(x)g(y), including reducing to this form by a given substitution; formulating a differential equation from a problem situation; interpreting an equation and its solution contextually.