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...Integrals of trigonometric functions in the previous section we learned how to turn integrands involving various radical and rational expressions containing variable x into consisting products powers this type also an overwhelming number combinations arise other mathematical applications can appear these but fortunately most fall such as fourier series a few general patterns be integrated using reduction formulas integral tables examines some illustrates obtain their sin ax cos bx wecanhandletheintegrals r dx by referring identities for sums differences sine cosine b byaddingorsubtracting pairs write sum or difference single sines cosines example adding rst two get last identity z c follow similarly if then integration techniques have already developed relevant therstandsecondoftheseintegralformulasfollowfromtheidentities third obtained changing u alone sinn cosn wecanndantiderviatives see problems from parts that small values n nd antiderivatives directly even reduce exponent repeated...