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the circle geometry was only worth one mark because its a rule.. if you proved the rule then you wasted time :P.. its some rule that says " a parralellogram is formed when two equal tranversals... blah blah"

i know!!! every1 talked about a grandpa!!!!!

and whoever told you that only a few people reach Q8 in 4u, spit in their face immediately, cause thats bullcrap...

the actual 4unit course isnt hard at all.. its a tweaked version of 3unit, with less calculator work.. you dont need to love maths at all to do it, just be good at it.. what is hard about 4unit is the "harder 3unit".. thats the stuff with balls.. like all hsc subjects, your mark is a reflection...

in the top box, write what kind of ID your going to show them on the day.. i wrote drivers license.. u could write passport, birth certificate etc. under it, write who its authorisied by, for my licence, i wrote RTA.. i dont really know who issues a passport or birth certificate, but look...

even though i havn't experienced the hsc, and what marks u can get with what assessment marks.. if u punch those assessement marks into sam, u'll get a rough estimate, but >80uai isnt impossible.. keep in mind that the average uai is 75, therefore, if u put in more effort (work smarter, not...

tell your teacher shes a slut.. graphs + polynomials are too easy, and some complex number and the rest of the whole book is too hard

for the first one, take Z as a common factor, then Z = 0 , and Z^4 = -1.. you need to use general solution so solve that (i think for that one its (2kpie + pie)/4 ) for the second part.. expand (Cos@ + iSin@)^4 using the binomial theorem, and also using demovire's theorem.. equate the two...