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This in the quadratic equations chapter and I have found one solution, which was x=-2. The answers section says there is two solutions. I know there is a method to find the solutions but I forget now. Like, a way to find out number of solutions. This is the very first exercise of the chapter...

y=2x^3-9x^2-60x+3 I have to find points where tangents are horizontal. If tangents are horizontal that means the gradient is 0? I'm not sure how to go about this. y'=9x^2-18x-60 is the derivative of the line. Not really sure. Do I sub in x=0? y'=0-0-60 y'=-60 lol, no idea.

I need to catch up on some prelim topics and I'm kind of getting stuck on exact ratios I need to find the exact ratio of cosec(45) I get 1/sin(45) Which is 1/root 2/2 So you get the reciprocal which is 1*2/root 2 Which is 2/root 2, rationalize the denominator by multiplying both...

I plan on taking my HSC very seriously aiming for a 95 atar as you can see in my sig. What 'study guides' would you reccomend? I do -Ancient History -PDHPE -2U Math -Adv English -Business Studies -Biology I've heard of success one and cambridge checkpoints, couldn't find out much about them...

This is the last day of school before exams commence. Anyone else in a similar position? Year 12 has come so fast, I'm gonna have to work really hard all year heh. Liek dis if u cry evrytime

May seem typical but Clearer notes, summarising more than just copying down word for word off of slides in class lol Studying about 2 hours everyday including homework from start Much more effort on assignments (each one is going to affect your ATAR) :biggrin: Improve handwriting (a kind of...

Does this simply mean 50% of your atar is from trials and 50% is from hsc exams or 50% from all assessment tasks in year 12 and 50% from the hsc exams?

Hey, looks like to become a dentist I have to get a bachelors degree (preferably 3 years) and I can choose whatever I want, do some equivalent of a human biology unit and then do the doctors of dental at USYD. I thought this could be a good opportunity to do something I'm personally interested...

Hey BOS, seems like a few years ago there was a massive increase in the amount of people wanting to do Actuarial Studies, not sure about now. Anyway. I know that it's very math intense with probability and statistics in mind, only problem is, I do 2U Math at school, currently in year 11. I...

Long time lurker but this assignment is making me feel weird. We basically have 3 parts Part 1- Make a poster (Lion, Witch and Wardrobe movie) Part 2- 2 A4 pages for a comparison to Norther Lights (done, easy) Part 3- Justify certain techniques and such that we did in the poster. Basically...

Long time lurker but this assignment is making me feel weird. We basically have 3 parts Part 1- Make a poster (Lion, Witch and Wardrobe movie) Part 2- 2 A4 pages for a comparison to Norther Lights (done, easy) Part 3- Justify certain techniques and such that we did in the poster. Basically...

Hey guys, I've read the sticky topics and seem to have grasped the concept fairly well. One concern I have is my school. It's very low ranking. I think it was in the five hundreds out of six hundreds on this page, not sure how accurate it was. Now I was reading for internal (class assessment)...