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Today's calculation of Integral 147

Source: Fukushima Medical University entrance exam 1980

August 28, 2006
calculusintegrationgeometryquadraticsfunctiontrigonometryalgebra

Problem Statement

Find the area of the figure surrounded by the curve 2(x2+1)y2+8x2y+x4+4x2āˆ’1=0.2(x^{2}+1)y^{2}+8x^{2}y+x^{4}+4x^{2}-1=0.
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