Umm... The locus of z if |z| = 1?
Ask yourself "What [complex] values satisfy |z| = 1?". The answer is of course the unit circle. Since the question is obviously dealing with the complex plane, the locus will be all complex numbers which satisfy |z| = 1. If the question is asking about points...
7 b) ii)
Note that f(sqrt[3]/3) = A(sqrt[3]/9)-A(sqrt[3]/3)+1 = -A(2sqrt[3]/9)+1.
When A < 3sqrt[3]/2,
-A(2sqrt[3]/9)+1 > 0.
Also note that f(-sqrt[3]/3) = A(-sqrt[3]/9)-A(-sqrt[3]/3)+1 = A(2sqrt[3]/9)+1.
When A > 0,
A(2sqrt[3]/9)+1 > 0
Then you can draw a diagram or give an explanation...
Most kiddos don't know about this site, as like some people said it's aimed mainly at HSC candidates. Until there are resources and whatnot avaliable this site will probably remain not that popular for year 10 students.
I rung up 3 times altogether. Once for religion and twice for english. The first english and the religion were both great, with them helping me extensively. For english, the discussion lasted 3/4 of an hour. The second english phone call, they put me through to someone who hadn't studied that...
Is anyone else in the same bucket as me, who barely studied a 2nd catagory, and thus since had only studied in depth rite of passage, is not fucked beyond any reasonable words? There goes literally 20 marks, so even if I get FULL marks in the rest, all I can get is 30/50....
worst fucking exam of my life. I'm HOPING for over 40%, it was terrible, I hated the questions, nearly all of them were beyond stupid. EVERYTHING I hate about 3 unit was in here, everything I find easy they forgot to include.