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    用Newton-Leibniz公式计算下列定积分:[tex=8.857x2.643]SRk0gRF7Z/wn3RQOh/Lv4J6xA6+v69ZWs67FE6mCXNbAwPI43fPVklj2FFrqGPIFd38mGyrGev6EV3nrNhJLKQ==[/tex].
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