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12 - TrigIntegrals - Trigonometric Integrals 1 1 sin x =...

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Trigonometric Integrals sin 2 x 1 2 - 1 2 cos2 x cos 2 x 1 2 1 2 cos2 x Ex. sin 2 x dx Ex. sin 4 x dx
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When the trig integral has even powers use sin 2 x 1 2 - 1 2 cos2 x cos 2 x 1 2 1 2 cos2 x Ex. sin 5 x dx 0 3 When the trig integral has odd powers use sin 2 x 1 - cos 2 x cos 2 x 1 - sin 2 x
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Ex. sin 2 x cos x dx Ex. sin 2 x cos 2 x dx
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Ex. sin 2 x cos 3 x dx Ex. sin 3 x cos 3 x dx
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Ex. sin 3 y 2
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