For on the interval

MATHEMATICS · Subjective · A Level · Mathematics · Numerical methods · Numerical methods

Problem

For f(x)=cos⁡x−xf(x)=\cos x - x on the interval [0,1][0,1], after one halving of the interval, which of the two subintervals [0,0.5][0,0.5] or [0.5,1][0.5,1] still contains a zero of ff? State the subinterval.

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