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   "source": [
    "# Exercises on Error Measures and Convergence"
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   "source": [
    "## Exercise 1\n",
    "\n",
    "a) Find the multiplicity of the root $r = 0$ of the function $f(x) = 1 - \\cos x$.\n",
    "\n",
    "b) Evaluate the forward and backward errors of the approximate root $\\tilde{r} = 0.001$."
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   "source": [
    "---\n",
    "This work is licensed under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/)"
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