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    解下面微分方程初值问题.[tex=7.929x4.786]fnpmC2J6JmQBLyo5NmGAz7w1eTyrPAhhi3OxImldbuDKF7PW8cfBvAB2EbWbHAQRfGWkVyKjxcK5JI3sZEqorAyd19mrtY3Mob47Ii1er++pkoohBQS/6f6ekDExwOkF1ZXPI48Bge7mMf/vRsYiuEUDb1IRutddJXgqRR2aBUo=[/tex]