MathDB
Today's calculation of Integral 893

Source: 2013 Ochanomizu University entrance exam/Science

October 5, 2013
calculusintegrationtrigonometryfunctionlogarithmsderivativecalculus computations

Problem Statement

Find the minimum value of f(x)=∫0π4∣tan⁡t−x∣dt.f(x)=\int_0^{\frac{\pi}{4}} |\tan t-x|dt.
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