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Today's calculation of Integral 573

Source: 2010 Tsukuba University entrance exam/Science, Problem 2

March 2, 2010
calculusintegrationgeometrytrigonometrylogarithmscalculus computations

Problem Statement

Find the area of the figure bounded by three curves C_1: y\equal{}\sin x\ \left(0\leq x<\frac {\pi}{2}\right) C_2: y\equal{}\cos x\ \left(0\leq x<\frac {\pi}{2}\right) C_3: y\equal{}\tan x\ \left(0\leq x<\frac {\pi}{2}\right).