STEP 2014: 26 questions decoded out of 26, by method and by chapter.

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The paper at a glance, coloured by move. Click a square to open its question; empty squares are not decoded yet.

• 1Square & Eliminate the AngleKey methodPureTrigonometryonly this sitting

  Same method, other sittings

  This one has only struck here so far.

  Worked solutionOpen the method
• 2Square-a-Bracket InequalitiesKey methodPureIntegration2 other sittings

  Same method, other sittings

  20172023

  Worked solutionOpen the method
• 3Eliminating the ParameterOsculating Circle & Higher ContactTunnelPureCoordinate Geometry & Conics3 other sittings

  Same method, other sittings

  201020162025

  Worked solutionOpen the method

  AlsoOsculating Circle & Higher Contact
• 4Reciprocal Substitution FoldingKey methodPureIntegration6 other sittings

  Same method, other sittings

  201220152017201820232025

  Worked solutionOpen the method
• 5Homogeneous ODE → $y=xu$Key methodPureDifferential Equations3 other sittings

  Same method, other sittings

  201520202022

  Worked solutionOpen the method
• 6Telescoping SumsKey methodPureSequences & Series6 other sittings

  Same method, other sittings

  201220152016201720222024

  Worked solutionOpen the method
• 7Sweeping Lines for Root CountsPiecewise Case-SplittingKey methodPureFunctions & Curve Sketching6 other sittings

  Same method, other sittings

  200620112013202120222025

  Worked solutionOpen the method

  AlsoPiecewise Case-Splitting
• 8Ratios & Iterated LogarithmsKey methodPureCombinatorics & Binomial1 other sitting

  Same method, other sittings

  2016

  Worked solutionOpen the method
• 9Limiting EquilibriumTunnelMechanics10 other sittings

  Same method, other sittings

  2006201220132017201820192020202220232024

  Worked solutionOpen the method
• 10Projectiles → Split by AxisTunnelMechanics11 other sittings

  Same method, other sittings

  20062008200920102012201320172020202220232024

  Worked solutionOpen the method
• 11Kinematic ConstraintsKey methodMechanics4 other sittings

  Same method, other sittings

  2008201520182023

  Worked solutionOpen the method
• 12CDF of a Transformed VariableTunnelProb & StatsProbability & Statistics8 other sittings

  Same method, other sittings

  20092012201520172019202020212022

  Worked solutionOpen the method
• 13Indicators + Linearity of ExpectationKey methodProb & StatsProbability & Statistics5 other sittings

  Same method, other sittings

  20082011201320212024

  Worked solutionOpen the method

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The paper at a glance, coloured by move. Click a square to open its question; empty squares are not decoded yet.

• 1Newton's Identities for Power SumsKey methodPureSequences & Series1 other sitting

  Same method, other sittings

  2009

  Worked solutionOpen the method
• 2Weierstrass & Structured SubstitutionsTunnelPureIntegration4 other sittings

  Same method, other sittings

  2008200920192020

  Worked solutionOpen the method
• 3Parametrising ConicsKey methodPureCoordinate Geometry & Conics5 other sittings

  Same method, other sittings

  20062008201720182022

  Worked solutionOpen the method
• 4Square-a-Bracket InequalitiesKey methodPureIntegration2 other sittings

  Same method, other sittings

  20172023

  Worked solutionOpen the method
• 5Rotation as MultiplicationKey methodPureComplex Numbers4 other sittings

  Same method, other sittings

  2006200820172020

  Worked solutionOpen the method
• 6Anchor Point & Derivative SignKey methodPureSequences & Series3 other sittings

  Same method, other sittings

  200920112023

  Worked solutionOpen the method
• 7Affine Combinations & the Section FormulaKey methodPureVectors & Matrices6 other sittings

  Same method, other sittings

  200620082009201220152024

  Worked solutionOpen the method
• 8Sandwiching Sums with IntegralsKey methodPureSequences & Series4 other sittings

  Same method, other sittings

  2009201220152017

  Worked solutionOpen the method
• 9Linear Air Resistance: Integrate the Vector Equation, Resolve AfterwardsKey methodMechanicsonly this sitting

  Same method, other sittings

  This one has only struck here so far.

  Worked solutionOpen the method
• 10Spotting SHMKey methodMechanics5 other sittings

  Same method, other sittings

  20092013201520162020

  Worked solutionOpen the method
• 11Steady Rotation: One Vertical Equation and One Radial EquationTunnelMechanics1 other sitting

  Same method, other sittings

  2015

  Worked solutionOpen the method
• 12CDF of a Transformed VariableTunnelProb & StatsProbability & Statistics8 other sittings

  Same method, other sittings

  20092012201520172019202020212022

  Worked solutionOpen the method
• 13First Step → Self-Referential EquationKey methodProb & StatsProbability & Statistics4 other sittings

  Same method, other sittings

  2011201520202021

  Worked solutionOpen the method