定积分第四题 求大神
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2016-12-27
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首先根据周期性,有
![](https://iknow-pic.cdn.bcebos.com/279759ee3d6d55fb79f9224764224f4a20a4dd90?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
所以
![](https://iknow-pic.cdn.bcebos.com/d043ad4bd11373f006643bfead0f4bfbfbed0473?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
接下来根据奇函数的特点,得到
![](https://iknow-pic.cdn.bcebos.com/3812b31bb051f819268e542bd3b44aed2e73e72c?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
所以
![](https://iknow-pic.cdn.bcebos.com/83025aafa40f4bfb7c9dc9350a4f78f0f7361805?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
所以
![](https://iknow-pic.cdn.bcebos.com/8601a18b87d6277f343f645921381f30e924fca6?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
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2016-12-26
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