7-2 Trigonometric Integrals

三角积分

← 7-1 分部积分 7-3 三角替换 →

视频讲座

Video 1: Integration of Powers of sin/cos

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Video 2: Integration of Powers of sec/tan

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PPT 讲义

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7-2 Trigonometric Integrals

PPT 讲义

PDF 预览

小节练习

1. To integrate sin^2(x), use the identity:

sin(2x) (1-cos(2x))/2 cos^2(x) 1 - sin^2(x)

2. For int sin^m(x)cos^n(x)dx with odd m, save one sin and convert the rest to:

tan cos 1-cos^2 sec

← 7-1 分部积分 7-3 三角替换 →