• Best of luck to the class of 2024 for their HSC exams. You got this!
    Let us know your thoughts on the HSC exams here
  • YOU can help the next generation of students in the community!
    Share your trial papers and notes on our Notes & Resources page
MedVision ad

perms

  1. P

    Perms and Combs help (again 😭)

    pls help with the following qs (idk where to even start) 1. How many selections of at least one object can be made from n distinct objects? 2. Recall that a digit sum of a number n is the value obtained when the digits of n are added together. For example, the digit sum of...
  2. A

    PERMS AND COMBS HELP PLEASE

    i actually dont know anything about perms and combs and i have a exam which has it. in literally 3 weeks. ive watched a thousand youtube videos but its so conceptually hard to get cause there arent many formulas that idek where to start. i look at my textbook and be like WTAF is going on. how do...
Top