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- 16:32, 3 January 2012 diff hist +44 m TrigIdentities1
- 16:31, 3 January 2012 diff hist -21 m TrigFunctionsDegrees1
- 16:30, 3 January 2012 diff hist -21 m DisableFunctions1
- 16:29, 3 January 2012 diff hist -21 m PeriodicAnswers1
- 16:29, 3 January 2012 diff hist -21 m Logarithms1
- 16:28, 3 January 2012 diff hist -21 m UnorderedAnswers1
- 16:28, 3 January 2012 diff hist -21 m FactoredPolynomial1
- 16:27, 3 January 2012 diff hist -21 m ExpandedPolynomial1
- 16:27, 3 January 2012 diff hist -21 m InequalityAnswer1
- 16:26, 3 January 2012 diff hist -21 m SolutionForEquation1
- 16:25, 3 January 2012 diff hist -21 m EquationImplicitFunction1
- 16:25, 3 January 2012 diff hist -21 m EquationDefiningFunction1
- 16:24, 3 January 2012 diff hist -21 m AnswerBlankInExponent1
- 16:24, 3 January 2012 diff hist -21 m AlgebraicFractionAnswer1
- 16:23, 3 January 2012 diff hist -21 m FractionAnswer1
- 16:23, 3 January 2012 diff hist -21 m Matching1
- 16:22, 3 January 2012 diff hist -21 m ManyMultipleChoice1
- 16:22, 3 January 2012 diff hist -21 m MultipleChoiceCheckbox3
- 16:21, 3 January 2012 diff hist -21 m MultipleChoicePopup2
- 16:20, 3 January 2012 diff hist -21 m MultipleChoiceRadio1