Being resilient

  • The Derren Brown coin flipping scam
    problem

    The Derren Brown Coin Flipping Scam

    Age
    16 to 18
    Challenge level

    Calculate probabilities associated with the Derren Brown coin scam in which he flipped 10 heads in a row.

  • Tri-angled Trig
    problem

    Tri-Angled Trig

    Age
    16 to 18
    Challenge level

    Can you justify this equation involving three angles?

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