A level History exam revision resources written by A level Examiners




 

 
 
 
 

This lesson looks at...


  • The "term to term" formulae for an AP.
  • Using the "term to term" formulae to find the nth formulae for an AP.
  • Find the sum of the first four terms of an AP
  • Find the sum of the first "n" terms of an AP


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