(1)∫1/((x²-1)(x²+1))dx(2)∫1/x²(1+x²)dx(3)∫xsin²(x/2)dx(4)∫√(1-x)³dx(5)∫√(1-x²)/x²dx(6)∫1/(x√(x²+1))dx(7)∫|sinx-cosx|dx(8)∫√(cosx-cos³x)dx(4)以后有积分区域(4)0~1(5)√2/2~1(6)2~+∞(7)0~π/2(8)-π/2~π/2
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