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  1. lwyhws

    hardest 4u topic

    harder 3u and i hate complex
  2. lwyhws

    Permutations

    lol its cut out from a st.george illawarra banner! go the dragons
  3. lwyhws

    Permutations

    It makes sense now. Thanks!
  4. lwyhws

    Permutations

    Need help in arrangements in a circle. Can anyone help me with these kinda q's... (P187 Q10, 3u Fitzpatrick) In how many ways can 6 people be arranged in a circle if 2 particular people are always: a) together? b) separated? I understand part a) but have no clue in part b). Can...
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