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What theorem did Weierstrass use to study the properties of continuous functions?

  • Bolzano–Weierstrass theorem

  • Riemann's theorem

  • Fermat’s Last theorem

  • Bayes theorem

Answer

The Bolzano–Weierstrass theorem states that every bounded sequence in the real numbers has a convergent subsequence. Weierstrass used this theorem to study the properties of continuous functions. He showed that if a continuous function is defined on a closed and bounded interval, then it must have a maximum and a minimum value.
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