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  1. K

    Half Yearly Exams

    Hi, Does anyone want to share their half yearly exams from this year, last year or 2020 (if you had half yearlies)? Thanks KB
  2. K

    nested universal quantifiers

    How do you read this: What do the brackets mean?
  3. K

    error Q16c sample exam

    Hi, is there an error in question 16c ii of the sample NESA exam for Ext 2? They avoid it in the answers but I think the denominator of the sigma term should be 2k+1
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