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  1. charisloke

    prelim - inequalities and modulus questions

    Would appreciate it if anyone could help me with these sums; I tried doing them and came up with different answers from the ones in the book. So I'm not sure now if I did them wrong, or there are mistakes in the book's answers: (y2 - 6)/y < y |x-3|/(3-x) = x x2 > a2 |x - 3| +...
  2. charisloke

    Missing square puzzle

    In the second triangle, where does the extra square come from? :)
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