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Numerical Methods

State the two conditions required for a sign change between x=ax=ax=a and x=bx=bx=b to guarantee at least one root.

A
  • The function f(x)f(x)f(x) is continuous on [a,b][a,b][a,b]
  • f(a)f(a)f(a) and f(b)f(b)f(b) have the same sign
B
  • The function f(x)f(x)f(x) is discontinuous on [a,b][a,b][a,b]
  • f(a)f(a)f(a) and f(b)f(b)f(b) have opposite signs
C
  • The function f(x)f(x)f(x) is continuous on (a,b)(a,b)(a,b)
  • f(a)f(a)f(a) and f(b)f(b)f(b) are equal
D
  • The function f(x)f(x)f(x) is continuous on [a,b][a,b][a,b]
  • f(a)f(a)f(a) and f(b)f(b)f(b) have opposite signs

Numerical Methods Flashcards

  1. A Level
  2. /Maths
  3. /Numerical Methods

Flashcards for Edexcel A Level Maths Numerical Methods, covering the key formulae, methods and definitions you need to recall for Paper 1, Paper 2 and Paper 3. 23 cards drawn from 10.1 Locating Roots, 10.2 Iteration, 10.3 The Newton-Raphson Method, and 10.4 Applications to Modelling, matched to the Edexcel A Level Maths (9MA0) specification. Recall questions account for roughly 50% of marks at A Level Maths, so these target the marks you can secure before the paper starts.

Flashcards

Algebraic MethodsFunctions and GraphsSequences and SeriesBinomial ExpansionRadiansTrigonometric FunctionsTrigonometry and ModellingParametric EquationsDifferentiationNumerical MethodsIntegrationVectors