Subscriber commentsSee all

  • 23 April 2024
    Tim Garry
    Vectors HL
    Hi Prudence, The instructions to examiners on markschemes states that "Unless the question specifies otherwise, accept equivalent forms." So, if a question does not specifically state what units must be given for an angle then degrees or radians...
  • 17 April 2024
    Prudence Yeung
    Vectors HL
    Hi, may I ask whether students must answer questions involving angles using degrees as the standard unit (if no hint is given on the question)? Students ask me whether they can answer in radians but answer keys often indicate angles in degrees.  Thank...
  • 15 April 2024
    Tim Garry
    Review Tests
    Hi Ashley, Thanks very much for the helpful feedback. Yes, the instructions for Q.2 part (c) on HL Review Test 2 should have asked for the value of cos(75), not cos(15). I've corrected that. Thanks, Tim
  • 15 April 2024
    Ashley Munns
    Review Tests
    Hi Tim,Thank you for these. I think that HL Review Test 2, question 2c should say cos(75) rather than cos(15) - based on the solution.Thanks!