高等数学中，函数不定积分的结果中有个表示任意常数的C。对常数C处理不当，是求不定积分时出错的原因。通过例子说明原函数不同时，注意常数C的不同。并且求出两个不同原函数之间相差的常数来帮助理解。%In the higher mathematics, function of indefinite integral results in a representation of arbitrary constants C. The con-stant C processing is undeserved, was the cause of error for indefinite integral time. Through the example of the original function at the same time, attention should be paid to the constant C is different. And calculate the constant phase difference between two different primary function is to help understand.
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