# How do you integrate cos^2(x)?

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How do I integrate cos^2(x)? Please help me with this and include explanations so I can understand it.

Â© BrainMass Inc. brainmass.com March 6, 2023, 12:43 pm ad1c9bdddfhttps://brainmass.com/math/integrals/integration-cos-equations-4432

#### Solution Preview

See the attached solution file.

To handle , first use the trig identity . This step does not involve any calculus; we are simply using a trigonometric transformation to put the problem into a form that can be integrated.

Now factor the division by 2 out of ...

#### Solution Summary

The steps for integrating cos^2(x) are shown with explanations.

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