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  1. M

    2017 HSC Mathematics Extension 2 paper thoughts?

    Predictions for an e4 cut off? Hopefully it scales similarly to 2013 hsc
  2. M

    2017 HSC Mathematics Extension 2 paper thoughts?

    Can someone post the answers for Questions 8, 9 and 10 in MCQ? I got B, D and C respectively
  3. M

    2017 HSC Mathematics Extension 2 paper thoughts?

    You let N>0, so tantheta>h/r, But tantheta = r/h, therefore tantheta> 1/tantheta and then you just rearrange
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