计算下面各定积分 1)∫[0,1]√(4-x^2)dx 2)∫[-2,0]dx/x^2+2x+2 3)∫[0,1]xe^xdx 4)∫[1,e]xlnxdx计算下面各定积分1)∫[0,1]√(4-x^2)dx2)∫[-2,0]dx/x^2+2x+23)∫[0,1]xe^xdx4)∫[1,e]xlnxdx
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![计算下面各定积分 1)∫[0,1]√(4-x^2)dx 2)∫[-2,0]dx/x^2+2x+2 3)∫[0,1]xe^xdx 4)∫[1,e]xlnxdx计算下面各定积分1)∫[0,1]√(4-x^2)dx2)∫[-2,0]dx/x^2+2x+23)∫[0,1]xe^xdx4)∫[1,e]xlnxdx](/uploads/image/z/2651049-9-9.jpg?t=%E8%AE%A1%E7%AE%97%E4%B8%8B%E9%9D%A2%E5%90%84%E5%AE%9A%E7%A7%AF%E5%88%86+1%EF%BC%89%E2%88%AB%5B0%2C1%5D%E2%88%9A%284-x%5E2%29dx+2%EF%BC%89%E2%88%AB%5B-2%2C0%5Ddx%2Fx%5E2%2B2x%2B2+3%EF%BC%89%E2%88%AB%5B0%2C1%5Dxe%5Exdx+4%EF%BC%89%E2%88%AB%5B1%2Ce%5Dxlnxdx%E8%AE%A1%E7%AE%97%E4%B8%8B%E9%9D%A2%E5%90%84%E5%AE%9A%E7%A7%AF%E5%88%861%EF%BC%89%E2%88%AB%5B0%2C1%5D%E2%88%9A%284-x%5E2%29dx2%EF%BC%89%E2%88%AB%5B-2%2C0%5Ddx%2Fx%5E2%2B2x%2B23%EF%BC%89%E2%88%AB%5B0%2C1%5Dxe%5Exdx4%EF%BC%89%E2%88%AB%5B1%2Ce%5Dxlnxdx)
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