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so i came across this question which says solve for x, 2cos^(2)x+cos x-1=0, for the domain -180=<0>=180 my answers is 60,-60,180,180 can u please verify my answer

Re: Whats your fav. subject right now ? ^ biology really

thanks guys

when a question in trigonometry is asking u to evaluate what is it exactly telling u to do. for example evaluate sin(15)cos(15).

just wondering how you write your notes like do u type them or do u hand write them. what do u think is better.

and u know were not all millionaires being able to purchase 60-70 dollar books when ever we need more questions

ok then, but i also thought that terry lee came in 2 books one for prelim and one for year 12

so does that mean phoenix does not contain year 11 topics or what.

so i have basically done most of the questions that are relevant in the Cambridge book and now wanting to buy another book people on BOS have been saying that terry lee is the best but i also heard phoenix is pretty good. so what do u recommend

so does any one have the pdf version of the Fitzpatrick prelim extension maths book since ive done most of the questions from Cambridge and have decided to use another book since maths in focus is horrible. by the way does any one have any reviews on the phoenix book planning to by it.

spy how do u have all those textbooks for the different subjects u do

plz

thats what i mean^ i want to learn

nah i wanted to know like how to obtain the range for this particular graph

if anyone knows how to find the range without calculus please tell me

nah my teacher writes homework booklets for us so i dnt know what book it is from

ok then thanks anyways

i dnt know is that the only way of finding the range

ok so that means i cant find the range without calculus

just realised we have learnt the way they bounce and stuff at different degrees