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Zero/x^3-4x+2/Zero/Eighth/Exercise
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We consider the function
$f\colon \mathbb {R} \longrightarrow \mathbb {R} ,x\longmapsto x^{3}-4x+2.$
Determine, starting with the interval
${}[1,2]$
and using the bisection method, an interval of length
${}1/8$
which contains a zero of
${}f$
.
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