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  1. C

    Quit dr du?

    Hello! I'm have a big dilemma. I've been going to dr du for 4u and 3u but it's taking up soo much of my time, I feel all I'm doing is dr du maths hw and tutoring and not enough time for like any of my other subjects. Also, my school sets a lot of maths hw which I normally disregard until my...
  2. C

    stuck on either chem or eco

    hi guys, i am in a big dilemma. i was doing chem tutoring last term but dropped this term because i didn't do that well in the first assessment (prac - i got 17th) but did well in eco - i got 1st. i got my second assessment for chem back and my rank increased to 7th and i remained 1st for eco...
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    perms and combs

    Hi guys, for combs questions, I'm struggling to understand when you need to divide the whole thing by something factorial to get rid of 'order'. I get that you need to when there are equal groups, but I don't get why for picking cards out of a deck you don't need to divide. I have no idea when...
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