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giggles123

  • 4 years ago

prove that arctan(x)=1-x has at least one root

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  1. anonymous
    • 4 years ago
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    it is continuous for sure, so show that it is negative somewhere and positive somewhere else. try say \[-\frac{\pi}{4}\] and \[\frac{\pi}{3}\] so make your life easy

  2. Rogue
    • 4 years ago
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    That's utilizing the intermediate value theorem right?

  3. giggles123
    • 4 years ago
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    Yes

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