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# Evaluate the integral by making the given substitution. $\displaystyle \int \cos 2x \, dx$, $u = 2x$

## $\frac{1}{2} \sin 2 x+C$

Integrals

Integration

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### Video Transcript

Okay. We're trying to evaluate the integral. You know that you is gonna be two facts, which means that if two D acts is do you then detox? As do you divide by two. Which means now we can substitute end. So we write 1/2 times integral of co sign you. Do you remember The integral of co sign is sign And now we're at the point we can plug in. What? Us? We have 1/2 sign, two acts crust sea.

Integrals

Integration

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