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1 Mar 2020 23:46:01 UTC
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Trigonometric Integrals: Integral of cos^2(x)
In this video I go over the proof of the integral of the trigonometric function cos^2(x) and show that it is equal to 1/2*(x + sin(x)cos(x)) + C. In evaluating this integral I show that it is easier to evaluate if we can get rid of the square power, which is possible when using the half angle trig identity: cos^2(x) = 1/2*(1 + cos(2x).

Download the notes in my video: https://onedrive.live.com/redir?resid=88862EF47BCAF6CD!103306&authkey=!AHrEezPMe5bRpdM&ithint=file%2cpdf

View Video Notes on Steemit: https://steemit.com/mathematics/@mes/trigonometric-integrals-integral-of-cos-2-x

Related Videos:

Trigonometric Integrals: Example 1: http://youtu.be/UO0DjuF4330
Trigonometric Integrals: Example 2: http://youtu.be/0Omohf0WbbU
Trigonometric Integrals: Example 3: sin(x)^2: http://youtu.be/-sLS4uBoq5M
Trigonometric Integrals: Example 4: sin(x)^4: http://youtu.be/vf_Vk8teH9E
Trigonometric Integrals: Guidelines for sin(x)cos(x): http://youtu.be/aE8Sz5BdMT8
Trigonometric Integrals: Example 5: http://youtu.be/Rfel0uY5H1Y
Trigonometric Integrals Example 6 : http://youtu.be/Ll9j-ZUgrmo
Trigonometric Integrals: Guidelines for tan(x)cos(x): http://youtu.be/oz5nXlYQPB0
Trigonometric Integrals: Example 7: tan(x)^3: http://youtu.be/kFaj0djxfak
Trigonometric Integrals: Example 8: sec(x)^3: http://youtu.be/6381DXW85kA
Trigonometric Integrals Example 9: sin(4x)cos(5x): http://youtu.be/2cLOj0549rw
Trigonometric Identity: sin(2x) = 2sin(x)cos(x): http://youtu.be/IaZFDmVtyyU
Half Angle Trigonometry Identities: http://youtu.be/0bY6tHZhBSI .

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