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  1. Y

    Functions

    Can anybody please tell me how to find the values of b if, f(x)=3x^2-7x+1 and f(b)=7 Its in Chapter 5 challenge in maths in focus Any help would be awesome :)
  2. Y

    Trig help

    yup -67'30' I think its because u have to do the opposite when going in a negative direction on the unit circle which is bloody confusing.
  3. Y

    Trig help

    tan2x=1 tan45=1 x=22'30',-157'30',67'30',112'30' Is this right?
  4. Y

    Advice for subject choices for year 12

    Hi I am a year 11 student who is about to enter the HSC in a couple of months and I need some advice. I currently have 12 units (3U maths, english standard, modern history, biology and Studies of religion I). I am trying to decide whether to keep 3U maths and drop Studies of religion I and do...
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