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Recent content by Haz_taz

  1. H

    Tricks in permutation and cominations

    How did you get this answer?, the only way i can think off getting this is by listing out all the options for S behind H. I am super confused rn
  2. H

    Tricks in permutation and cominations

    That is so correct, as i do the questions, i can see that there is very little change, although, how do i counter the proof questions, those tend to be harder
  3. H

    Tricks in permutation and cominations

    Would an example being using tree diagram instead of multiplication and addition principal
  4. H

    Tricks in permutation and cominations

    Thats true, as i do alot of questions i see that there are alot of variation
  5. H

    Tricks in permutation and cominations

    I am about to start this topic, so i was wondering if there was any tips, tricks, or anything in general to lookout for
  6. H

    Permutation and combinations, confusing question

    THANKS ALOT FOR THE HELP I WAS STUCK ON THIS QUESTIONS OMG!!
  7. H

    Permutation and combinations, confusing question

    Thanks for the answer, i think i understand how to solve this but the book says answer is 12
  8. H

    Permutation and combinations, confusing question

    How many ways can you make change for 50 cents using 5, 10 and 20 cent pieces
  9. H

    Find λ for the points X(−1, 0), Y (1, λ) and Z(λ, 2), if angle YXZ = 90◦

    Ahhh, interesting approach, i understand now
  10. H

    Find λ for the points X(−1, 0), Y (1, λ) and Z(λ, 2), if angle YXZ = 90◦

    Please help me with this question, i have tried to consider that the two gradients are XY and XZ, because when multiplied it should give -1, but λ cancels when doing so
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