# Search results

1. ### UNSW chit chat thread

Re: UNSW chit chat thread 2016 This makes absolutely none sense.
2. ### 2016ers Chit-Chat Thread

I need help :( I can't focus :(
3. ### Quick General Solution Trig Question

√3 sin(x) = cos(x) - 1 3sin^2(x) = cos^2(x) - 2cos(x) + 1 2cos^2(x) - cos(x) - 1 = 0 (2cos(x) + 1)(cos(x) - 1) = 0
4. ### ACTL1101 Questions Help (mostly first year uni probability)

What if r is odd in that formula? What if r is even?
5. ### MATH1081 Discrete Maths

Re: Discrete Maths Sem 2 2016 Understood, now. It took me a very long time to understand... what's wrong with me?!
6. ### 2016ers Chit-Chat Thread

Right... high-school sucks. When I see perms and combs, the answer is not immediate, I guess I need more practice.
7. ### Logic Puzzles Marathon

What do you think is the fastest way to do that type of "mystery puzzle" in real life? Or if you were playing detective. Practice and think in formal logic? Practice deductive reasoning and use common sense? Something else?
8. ### 2016ers Chit-Chat Thread

As long as you can analyse it to prove your argument and is related to the module, it'll be fine. Aside that, does anyone have any general advice on mastering permutations and combinations?
9. ### Logic Puzzles Marathon

See #modustollens on statement 3 of the question.
10. ### MATH1081 Discrete Maths

Re: Discrete Maths Sem 2 2016 Still feels right
11. ### Logic Puzzles Marathon

Mrs Smith is lying, so Moriarty has not escaped which means Moriarty is not Jones. Lastly, Moriarty is either dead or is Jones and we know that Moriarty is not Jones which allows us to conclude that Moriarty is dead! Hard part was concluding Moriarty is not Jones given that Moriarty has not...
12. ### MATH1081 Discrete Maths

Re: Discrete Maths Sem 2 2016 "Changing clothes does not mean going swimming" ≡ "changing clothes means not going swimming"