Recent content by fifibum

Thanks for the advice!

What is the school environment like at SGHS? Is it more welcoming and friendly than Fort Street? Which is the better school without considering rank? Thanks!

Fort Street vs Sydney Girls...which is a better school, in the way of school environment, friendliness, opportunities, to attend in year 11?

Hey, I know nothing about the locus..Point P(x,y) moves so that the midpoint between P and the origin is always a point on the circle x^2 + y^2 = 1. Find the equation of the locus of P...from Maths In Focus Ex 7.2 Thanks!

Thanks heaps!:)

Yes, those were the ones

How would you actually do this question though?

When solving a question like 3sintheta + 4costheta = 0, how would you know which sum or difference of two angles to use? For example, what makes you choose to use sin(theta + alpha) instead of cos(theta + alpha)?

Does anyone know where I can buy 2U and 3U prelim and HSC Fitzpatrick textbooks? Am I dumb if I find some questions from Maths In Focus hard?

How would you find the exact value of sin 67.5 cos 67.5? :/

Thanks!

Hey, I'm doing prelim 3U trig and I don't know how to do this question from Maths In Focus: Find the exact value of 2tan 120/1-tan^2 120 :/

How would multiply cos 3 theta by cos theta? Double angles killing my life

I'm working from the Maths In Focus prelim ext. 1 textbook (Grove) and am so stuck on ex 6.14, question 8...cosine rule doesn't seem to be working...help!