A-Level Further Maths Edexcel 9FM0

9: Differential equations

#9.1

Use an integrating factor to solve differential equations

Find and use an integrating factor to solve differential equations of form

dydx+P(x)y=Q(x)\dfrac{dy}{dx} + P(x)y = Q(x)

and recognise when it is appropriate to do so.

#9.2

General and particular solutions

Find both general and particular solutions to differential equations.

#9.3

Use differential equations in modelling

Use differential equations in modelling in kinematics and in other contexts.

#9.4

Solve differential equations using the auxiliary equation

Solve differential equations of form y+ay+by=0y'' + ay' + by = 0 where aa and bb are constants by using the auxiliary equation.

#9.5

Solve differential equations by using the complementary function

Solve differential equations of form y+ay+by=0y'' + ay' + by = 0 where aa and bb are constants by solving the homogeneous case and adding a particular integral to the complementary function (in cases where f(x)f(x) is a polynomial, exponential or trigonometric function).

#9.6

Discriminant of the auxiliary equation

Understand and use the relationship between the cases when the discriminant of the auxiliary equation is positive, zero and negative and the form of solution of the differential equation.

#9.7

Solve the equation for simple harmonic motion

Solve the equation for simple harmonic motion x¨=ω2x\ddot{x} = -ω^2x and relate the solution to the motion.

#9.8

Model damped oscillations using second order differential equations

Model damped oscillations using second order differential equations and interpret their solutions.

#9.9

Models using coupled first order simultaneous equations

Analyse and interpret models of situations with one independent variable and two dependent variables as a pair of coupled first order simultaneous equations and be able to solve them, for example predator-prey models.

8
Hyperbolic functions
FP1.1
Further Trigonometry