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Indefinite Integrals of Trigonometric Functions

三角函数的不定积分

To each of these indefinite integrals should be added an arbitrary constant of integration, which cannot be determined by the integration process. The definite integrals of the squares of trig functions are of interest in many physical problems.

这些不定积分应加上一个任意的积分常数,该常数无法通过积分过程确定。三角函数平方的定积分在许多物理问题中具有重要意义。

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